21101032211200 has 108 divisors (see below), whose sum is σ = 52735424782768. Its totient is φ = 8358466867200.

The previous prime is 21101032211197. The next prime is 21101032211213. The reversal of 21101032211200 is 211223010112.

It is a super-2 number, since 2×21101032211200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 15345831 + ... + 16664230.

Almost surely, 2^{21101032211200} is an apocalyptic number.

21101032211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21101032211200 is an abundant number, since it is smaller than the sum of its proper divisors (31634392571568).

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

21101032211200 is a wasteful number, since it uses less digits than its factorization.

21101032211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32010190 (or 32010171 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21101032211200 its reverse (211223010112), we get a palindrome (21312255221312).

The spelling of 21101032211200 in words is "twenty-one trillion, one hundred one billion, thirty-two million, two hundred eleven thousand, two hundred".