1222061160 has 128 divisors (see below), whose sum is σ = 3895516800. Its totient is φ = 306109440.

The previous prime is 1222061143. The next prime is 1222061179. The reversal of 1222061160 is 611602221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124015 + ... + 133505.

It is an arithmetic number, because the mean of its divisors is an integer number (30433725).

Almost surely, 2^1222061160 is an apocalyptic number.

1222061160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222061160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947758400).

1222061160 is an abundant number, since it is smaller than the sum of its proper divisors (2673455640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222061160 is a wasteful number, since it uses less digits than its factorization.

1222061160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571 (or 9567 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1222061160 is about 34957.9913610608. The cubic root of 1222061160 is about 1069.1311431530.

Adding to 1222061160 its reverse (611602221), we get a palindrome (1833663381).

It can be divided in two parts, 1222061 and 160, that added together give a palindrome (1222221).

The spelling of 1222061160 in words is "one billion, two hundred twenty-two million, sixty-one thousand, one hundred sixty".