101211110010020 has 24 divisors (see below), whose sum is σ = 212713501875000. Its totient is φ = 40452030508032.

The previous prime is 101211110010011. The next prime is 101211110010053. The reversal of 101211110010020 is 20010011112101.

It can be written as a sum of positive squares in 4 ways, for example, as 15115227136 + 101195994782884 = 122944^2 + 10059622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101211110009983 and 101211110010010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025817895 + ... + 2025867854.

It is an arithmetic number, because the mean of its divisors is an integer number (8863062578125).

Almost surely, 2^{101211110010020} is an apocalyptic number.

101211110010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211110010020 is an abundant number, since it is smaller than the sum of its proper divisors (111502391864980).

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

101211110010020 is a wasteful number, since it uses less digits than its factorization.

101211110010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051687007 (or 4051687005 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101211110010020 its reverse (20010011112101), we get a palindrome (121221121122121).

The spelling of 101211110010020 in words is "one hundred one trillion, two hundred eleven billion, one hundred ten million, ten thousand, twenty".