1222042351 has 16 divisors (see below), whose sum is σ = 1295078400. Its totient is φ = 1151236800.

The previous prime is 1222042337. The next prime is 1222042363. The reversal of 1222042351 is 1532402221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1222042351 - 2⁵ = 1222042319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222042651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836860 + ... + 838318.

It is an arithmetic number, because the mean of its divisors is an integer number (80942400).

Almost surely, 2^1222042351 is an apocalyptic number.

1222042351 is a deficient number, since it is larger than the sum of its proper divisors (73036049).

1222042351 is a wasteful number, since it uses less digits than its factorization.

1222042351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1222042351 is about 34957.7223371317. The cubic root of 1222042351 is about 1069.1256580509.

Adding to 1222042351 its reverse (1532402221), we get a palindrome (2754444572).

The spelling of 1222042351 in words is "one billion, two hundred twenty-two million, forty-two thousand, three hundred fifty-one".