21122210211000 has 64 divisors (see below), whose sum is σ = 65901295867680. Its totient is φ = 5632589388800.

The previous prime is 21122210210963. The next prime is 21122210211043. The reversal of 21122210211000 is 11201222112.

It is a super-2 number, since 2×21122210211000² (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 congruent number.

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, 3520365369 + ... + 3520371368.

Almost surely, 2^{21122210211000} is an apocalyptic number.

21122210211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122210211000 is an abundant number, since it is smaller than the sum of its proper divisors (44779085656680).

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

21122210211000 is a wasteful number, since it uses less digits than its factorization.

21122210211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040736761 (or 7040736747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21122210211000 its reverse (11201222112), we get a palindrome (21133411433112).

The spelling of 21122210211000 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred ten million, two hundred eleven thousand".