22212131212100 has 36 divisors (see below), whose sum is σ = 48781051552464. Its totient is φ = 8777806066080.

The previous prime is 22212131212021. The next prime is 22212131212171. The reversal of 22212131212100 is 121213121222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1338071894 + ... + 1338088493.

Almost surely, 2^{22212131212100} is an apocalyptic number.

22212131212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212131212100 is an abundant number, since it is smaller than the sum of its proper divisors (26568920340364).

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

22212131212100 is a wasteful number, since it uses less digits than its factorization.

22212131212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676160484 (or 2676160477 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22212131212100 its reverse (121213121222), we get a palindrome (22333344333322).

The spelling of 22212131212100 in words is "twenty-two trillion, two hundred twelve billion, one hundred thirty-one million, two hundred twelve thousand, one hundred".