101211120021020 has 96 divisors (see below), whose sum is σ = 214587128448000. Its totient is φ = 40096910246400.

The previous prime is 101211120020999. The next prime is 101211120021031. The reversal of 101211120021020 is 20120021112101.

101211120021020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 101211120020986 and 101211120021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1569156731 + ... + 1569221229.

It is an arithmetic number, because the mean of its divisors is an integer number (2235282588000).

Almost surely, 2^{101211120021020} is an apocalyptic number.

101211120021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211120021020 is an abundant number, since it is smaller than the sum of its proper divisors (113376008426980).

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

101211120021020 is a wasteful number, since it uses less digits than its factorization.

101211120021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66195 (or 66193 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101211120021020 its reverse (20120021112101), we get a palindrome (121331141133121).

The spelling of 101211120021020 in words is "one hundred one trillion, two hundred eleven billion, one hundred twenty million, twenty-one thousand, twenty".