22101021212200 has 96 divisors (see below), whose sum is σ = 59307012322560. Its totient is φ = 7502468256000.

The previous prime is 22101021212183. The next prime is 22101021212267. The reversal of 22101021212200 is 221212010122.

It is a happy number.

It is a super-2 number, since 2×22101021212200² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78009312 + ... + 78292111.

It is an arithmetic number, because the mean of its divisors is an integer number (617781378360).

Almost surely, 2^{22101021212200} is an apocalyptic number.

22101021212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101021212200 is an abundant number, since it is smaller than the sum of its proper divisors (37205991110360).

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

22101021212200 is a wasteful number, since it uses less digits than its factorization.

22101021212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156301547 (or 156301538 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22101021212200 its reverse (221212010122), we get a palindrome (22322233222322).

The spelling of 22101021212200 in words is "twenty-two trillion, one hundred one billion, twenty-one million, two hundred twelve thousand, two hundred".