211200012102100 has 72 divisors (see below), whose sum is σ = 523778027588480. Its totient is φ = 72411156558720.

The previous prime is 211200012102073. The next prime is 211200012102109. The reversal of 211200012102100 is 1201210002112.

It is a super-2 number, since 2×211200012102100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200012102109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282543646 + ... + 283290154.

Almost surely, 2^{211200012102100} is an apocalyptic number.

211200012102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211200012102100 is an abundant number, since it is smaller than the sum of its proper divisors (312578015486380).

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

211200012102100 is a wasteful number, since it uses less digits than its factorization.

211200012102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150697 (or 1150690 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211200012102100 its reverse (1201210002112), we get a palindrome (212401222104212).

The spelling of 211200012102100 in words is "two hundred eleven trillion, two hundred billion, twelve million, one hundred two thousand, one hundred".