12211220020100 has 72 divisors (see below), whose sum is σ = 26546849434560. Its totient is φ = 4875553710720.

The previous prime is 12211220020073. The next prime is 12211220020123. The reversal of 12211220020100 is 102002211221.

It is a super-2 number, since 2×12211220020100² (a number of 27 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 164919287 + ... + 164993313.

Almost surely, 2^{12211220020100} is an apocalyptic number.

12211220020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211220020100 is an abundant number, since it is smaller than the sum of its proper divisors (14335629414460).

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

12211220020100 is a wasteful number, since it uses less digits than its factorization.

12211220020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77037 (or 77030 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12211220020100 its reverse (102002211221), we get a palindrome (12313222231321).

The spelling of 12211220020100 in words is "twelve trillion, two hundred eleven billion, two hundred twenty million, twenty thousand, one hundred".