22101211111210 has 128 divisors (see below), whose sum is σ = 51668232929280. Its totient is φ = 6605312313600.

The previous prime is 22101211111183. The next prime is 22101211111249. The reversal of 22101211111210 is 1211111210122.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1645414 + ... + 6849073.

It is an arithmetic number, because the mean of its divisors is an integer number (403658069760).

Almost surely, 2^{22101211111210} is an apocalyptic number.

22101211111210 is an abundant number, since it is smaller than the sum of its proper divisors (29567021818070).

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

22101211111210 is a wasteful number, since it uses less digits than its factorization.

22101211111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494652.

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

Adding to 22101211111210 its reverse (1211111210122), we get a palindrome (23312322321332).

The spelling of 22101211111210 in words is "twenty-two trillion, one hundred one billion, two hundred eleven million, one hundred eleven thousand, two hundred ten".