10201121110020 has 48 divisors (see below), whose sum is σ = 28708129695168. Its totient is φ = 2706490335360.

The previous prime is 10201121109961. The next prime is 10201121110057. The reversal of 10201121110020 is 2001112110201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10201121109978 and 10201121110005.

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, 431507686 + ... + 431531325.

It is an arithmetic number, because the mean of its divisors is an integer number (598086035316).

Almost surely, 2^{10201121110020} is an apocalyptic number.

10201121110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201121110020 is an abundant number, since it is smaller than the sum of its proper divisors (18507008585148).

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

10201121110020 is a wasteful number, since it uses less digits than its factorization.

10201121110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863039220 (or 863039218 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10201121110020 its reverse (2001112110201), we get a palindrome (12202233220221).

The spelling of 10201121110020 in words is "ten trillion, two hundred one billion, one hundred twenty-one million, one hundred ten thousand, twenty".