1122221110 has 16 divisors (see below), whose sum is σ = 2021152032. Its totient is φ = 448632000.

The previous prime is 1122221077. The next prime is 1122221143. The reversal of 1122221110 is 111222211.

It is an interprime number because it is at equal distance from previous prime (1122221077) and next prime (1122221143).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13146 + ... + 49165.

It is an arithmetic number, because the mean of its divisors is an integer number (126322002).

Almost surely, 2^1122221110 is an apocalyptic number.

1122221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122221110 is a deficient number, since it is larger than the sum of its proper divisors (898930922).

1122221110 is a wasteful number, since it uses less digits than its factorization.

1122221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64119.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1122221110 is about 33499.5688031951. The cubic root of 1122221110 is about 1039.1848611481.

Adding to 1122221110 its reverse (111222211), we get a palindrome (1233443321).

It can be divided in two parts, 112 and 2221110, that added together give a palindrome (2221222).

The spelling of 1122221110 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred ten".