1221332214 has 16 divisors (see below), whose sum is σ = 2484066240. Its totient is φ = 400210440.

The previous prime is 1221332201. The next prime is 1221332219. The reversal of 1221332214 is 4122331221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221332219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724692 + ... + 1725399.

It is an arithmetic number, because the mean of its divisors is an integer number (155254140).

Almost surely, 2^1221332214 is an apocalyptic number.

1221332214 is an abundant number, since it is smaller than the sum of its proper divisors (1262734026).

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

1221332214 is a wasteful number, since it uses less digits than its factorization.

1221332214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450155.

The product of its digits is 576, while the sum is 21.

The square root of 1221332214 is about 34947.5637777514. The cubic root of 1221332214 is about 1068.9185258954.

Adding to 1221332214 its reverse (4122331221), we get a palindrome (5343663435).

The spelling of 1221332214 in words is "one billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred fourteen".