22101212222010 has 32 divisors (see below), whose sum is σ = 58936565926080. Its totient is φ = 5893656592464.

The previous prime is 22101212221969. The next prime is 22101212222059. The reversal of 22101212222010 is 1022221210122.

It is a happy number.

22101212222010 is a `hidden beast` number, since 221 + 0 + 1 + 21 + 222 + 201 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40928170512 + ... + 40928171051.

It is an arithmetic number, because the mean of its divisors is an integer number (1841767685190).

Almost surely, 2^{22101212222010} is an apocalyptic number.

22101212222010 is an abundant number, since it is smaller than the sum of its proper divisors (36835353704070).

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

22101212222010 is a wasteful number, since it uses less digits than its factorization.

22101212222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81856341579 (or 81856341573 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22101212222010 its reverse (1022221210122), we get a palindrome (23123433432132).

The spelling of 22101212222010 in words is "twenty-two trillion, one hundred one billion, two hundred twelve million, two hundred twenty-two thousand, ten".