22002201212 has 24 divisors (see below), whose sum is σ = 40568027136. Its totient is φ = 10420624368.

The previous prime is 22002201181. The next prime is 22002201223. The reversal of 22002201212 is 21210220022.

It is a congruent number.

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, 1151468 + ... + 1170419.

It is an arithmetic number, because the mean of its divisors is an integer number (1690334464).

Almost surely, 2^22002201212 is an apocalyptic number.

It is an amenable number.

22002201212 is a deficient number, since it is larger than the sum of its proper divisors (18565825924).

22002201212 is a wasteful number, since it uses less digits than its factorization.

22002201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322017 (or 2322015 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22002201212 its reverse (21210220022), we get a palindrome (43212421234).

The spelling of 22002201212 in words is "twenty-two billion, two million, two hundred one thousand, two hundred twelve".