22011112021210 has 16 divisors (see below), whose sum is σ = 42667694072136. Its totient is φ = 8127179823168.

The previous prime is 22011112021183. The next prime is 22011112021219. The reversal of 22011112021210 is 1212021111022.

It can be written as a sum of positive squares in 4 ways, for example, as 10081748981329 + 11929363039881 = 3175177^2 + 3453891^2 .

It is not an unprimeable number, because it can be changed into a prime (22011112021219) 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, 84658123029 + ... + 84658123288.

Almost surely, 2^{22011112021210} is an apocalyptic number.

22011112021210 is a deficient number, since it is larger than the sum of its proper divisors (20656582050926).

22011112021210 is a wasteful number, since it uses less digits than its factorization.

22011112021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169316246337.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22011112021210 its reverse (1212021111022), we get a palindrome (23223133132232).

The spelling of 22011112021210 in words is "twenty-two trillion, eleven billion, one hundred twelve million, twenty-one thousand, two hundred ten".