101010200121020 has 48 divisors (see below), whose sum is σ = 212203630705248. Its totient is φ = 40388423147520.

The previous prime is 101010200121007. The next prime is 101010200121091. The reversal of 101010200121020 is 20121002010101.

It is a junction number, because it is equal to n+sod(n) for n = 101010200120992 and 101010200121010.

It is a congruent 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, 813899612 + ... + 814023708.

It is an arithmetic number, because the mean of its divisors is an integer number (4420908973026).

Almost surely, 2^{101010200121020} is an apocalyptic number.

101010200121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101010200121020 is an abundant number, since it is smaller than the sum of its proper divisors (111193430584228).

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

101010200121020 is a wasteful number, since it uses less digits than its factorization.

101010200121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139550 (or 139548 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101010200121020 its reverse (20121002010101), we get a palindrome (121131202131121).

The spelling of 101010200121020 in words is "one hundred one trillion, ten billion, two hundred million, one hundred twenty-one thousand, twenty".