101211112010020 has 48 divisors (see below), whose sum is σ = 213721825681728. Its totient is φ = 40259979262080.

The previous prime is 101211112010003. The next prime is 101211112010053. The reversal of 101211112010020 is 20010211112101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204075987 + ... + 204571333.

It is an arithmetic number, because the mean of its divisors is an integer number (4452538035036).

Almost surely, 2^{101211112010020} is an apocalyptic number.

101211112010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211112010020 is an abundant number, since it is smaller than the sum of its proper divisors (112510713671708).

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

101211112010020 is a wasteful number, since it uses less digits than its factorization.

101211112010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551980 (or 551978 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101211112010020 its reverse (20010211112101), we get a palindrome (121221323122121).

The spelling of 101211112010020 in words is "one hundred one trillion, two hundred eleven billion, one hundred twelve million, ten thousand, twenty".