22001200221210 has 64 divisors (see below), whose sum is σ = 60368509440000. Its totient is φ = 5026982409792.

The previous prime is 22001200221131. The next prime is 22001200221211. The reversal of 22001200221210 is 1212200210022.

It is a super-2 number, since 2×22001200221210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22001200221210.

It is not an unprimeable number, because it can be changed into a prime (22001200221211) 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, 18841810 + ... + 19975389.

It is an arithmetic number, because the mean of its divisors is an integer number (943257960000).

Almost surely, 2^{22001200221210} is an apocalyptic number.

22001200221210 is an abundant number, since it is smaller than the sum of its proper divisors (38367309218790).

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

22001200221210 is a wasteful number, since it uses less digits than its factorization.

22001200221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38819915.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22001200221210 its reverse (1212200210022), we get a palindrome (23213400431232).

The spelling of 22001200221210 in words is "twenty-two trillion, one billion, two hundred million, two hundred twenty-one thousand, two hundred ten".