22423220343212 has 24 divisors (see below), whose sum is σ = 44483311614000. Its totient is φ = 9804485007936.

The previous prime is 22423220343211. The next prime is 22423220343281. The reversal of 22423220343212 is 21234302232422.

It is a super-3 number, since 3×22423220343212³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22423220343211) 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, 11347782587 + ... + 11347784562.

It is an arithmetic number, because the mean of its divisors is an integer number (1853471317250).

Almost surely, 2^{22423220343212} is an apocalyptic number.

It is an amenable number.

22423220343212 is a deficient number, since it is larger than the sum of its proper divisors (22060091270788).

22423220343212 is a wasteful number, since it uses less digits than its factorization.

22423220343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22695567185 (or 22695567183 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 22423220343212 its reverse (21234302232422), we get a palindrome (43657522575634).

The spelling of 22423220343212 in words is "twenty-two trillion, four hundred twenty-three billion, two hundred twenty million, three hundred forty-three thousand, two hundred twelve".