22101212101210 has 64 divisors (see below), whose sum is σ = 45831256289280. Its totient is φ = 7594759036480.

The previous prime is 22101212101159. The next prime is 22101212101217. The reversal of 22101212101210 is 1210121210122.

It is not an unprimeable number, because it can be changed into a prime (22101212101217) 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, 52414450 + ... + 52834429.

It is an arithmetic number, because the mean of its divisors is an integer number (716113379520).

Almost surely, 2^{22101212101210} is an apocalyptic number.

22101212101210 is an abundant number, since it is smaller than the sum of its proper divisors (23730044188070).

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

22101212101210 is a wasteful number, since it uses less digits than its factorization.

22101212101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105249003.

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

Adding to 22101212101210 its reverse (1210121210122), we get a palindrome (23311333311332).

The spelling of 22101212101210 in words is "twenty-two trillion, one hundred one billion, two hundred twelve million, one hundred one thousand, two hundred ten".