22351312002 has 32 divisors (see below), whose sum is σ = 46769402880. Its totient is φ = 7107685200.

The previous prime is 22351311977. The next prime is 22351312021. The reversal of 22351312002 is 20021315322.

It is a super-2 number, since 2×22351312002² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22351312002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161374 + ... + 265977.

It is an arithmetic number, because the mean of its divisors is an integer number (1461543840).

Almost surely, 2^22351312002 is an apocalyptic number.

22351312002 is an abundant number, since it is smaller than the sum of its proper divisors (24418090878).

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

22351312002 is a wasteful number, since it uses less digits than its factorization.

22351312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427758.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 22351312002 its reverse (20021315322), we get a palindrome (42372627324).

The spelling of 22351312002 in words is "twenty-two billion, three hundred fifty-one million, three hundred twelve thousand, two".