211020002012100 has 144 divisors (see below), whose sum is σ = 632861543046656. Its totient is φ = 54230812416000.

The previous prime is 211020002012081. The next prime is 211020002012119. The reversal of 211020002012100 is 1210200020112.

It is an interprime number because it is at equal distance from previous prime (211020002012081) and next prime (211020002012119).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44834059 + ... + 49316658.

Almost surely, 2^{211020002012100} is an apocalyptic number.

211020002012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211020002012100 is an abundant number, since it is smaller than the sum of its proper divisors (421841541034556).

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

211020002012100 is a wasteful number, since it uses less digits than its factorization.

211020002012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94151006 (or 94150999 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211020002012100 its reverse (1210200020112), we get a palindrome (212230202032212).

The spelling of 211020002012100 in words is "two hundred eleven trillion, twenty billion, two million, twelve thousand, one hundred".