22312120642 has 16 divisors (see below), whose sum is σ = 38820237120. Its totient is φ = 9419615568.

The previous prime is 22312120627. The next prime is 22312120667. The reversal of 22312120642 is 24602121322.

It is a super-3 number, since 3×22312120642³ (a number of 32 digits) contains 333 as substring.

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, 11892517 + ... + 11894392.

It is an arithmetic number, because the mean of its divisors is an integer number (2426264820).

Almost surely, 2^22312120642 is an apocalyptic number.

22312120642 is a deficient number, since it is larger than the sum of its proper divisors (16508116478).

22312120642 is a wasteful number, since it uses less digits than its factorization.

22312120642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23786985.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 22312120642 its reverse (24602121322), we get a palindrome (46914241964).

The spelling of 22312120642 in words is "twenty-two billion, three hundred twelve million, one hundred twenty thousand, six hundred forty-two".