211202112120100 has 72 divisors (see below), whose sum is σ = 491532542403840. Its totient is φ = 78524399940480.

The previous prime is 211202112120017. The next prime is 211202112120127. The reversal of 211202112120100 is 1021211202112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1048569172 + ... + 1048770571.

It is an arithmetic number, because the mean of its divisors is an integer number (6826840866720).

Almost surely, 2^{211202112120100} is an apocalyptic number.

211202112120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211202112120100 is an abundant number, since it is smaller than the sum of its proper divisors (280330430283740).

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

211202112120100 is a wasteful number, since it uses less digits than its factorization.

211202112120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097339829 (or 2097339822 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211202112120100 its reverse (1021211202112), we get a palindrome (212223323322212).

The spelling of 211202112120100 in words is "two hundred eleven trillion, two hundred two billion, one hundred twelve million, one hundred twenty thousand, one hundred".