22100121210 has 64 divisors (see below), whose sum is σ = 56191895424. Its totient is φ = 5543577600.

The previous prime is 22100121203. The next prime is 22100121217. The reversal of 22100121210 is 1212100122.

It is an interprime number because it is at equal distance from previous prime (22100121203) and next prime (22100121217).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22100121217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 973590 + ... + 996030.

It is an arithmetic number, because the mean of its divisors is an integer number (877998366).

Almost surely, 2^22100121210 is an apocalyptic number.

22100121210 is an abundant number, since it is smaller than the sum of its proper divisors (34091774214).

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

22100121210 is a wasteful number, since it uses less digits than its factorization.

22100121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24399.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22100121210 its reverse (1212100122), we get a palindrome (23312221332).

The spelling of 22100121210 in words is "twenty-two billion, one hundred million, one hundred twenty-one thousand, two hundred ten".