201012102111020 has 24 divisors (see below), whose sum is σ = 435742363287168. Its totient is φ = 77811136300800.

The previous prime is 201012102110987. The next prime is 201012102111049. The reversal of 201012102111020 is 20111201210102.

It is a super-2 number, since 2×201012102111020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201012102110986 and 201012102111004.

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, 162106533341 + ... + 162106534580.

It is an arithmetic number, because the mean of its divisors is an integer number (18155931803632).

Almost surely, 2^{201012102111020} is an apocalyptic number.

201012102111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012102111020 is an abundant number, since it is smaller than the sum of its proper divisors (234730261176148).

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

201012102111020 is a wasteful number, since it uses less digits than its factorization.

201012102111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324213067961 (or 324213067959 counting only the distinct ones).

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

Adding to 201012102111020 its reverse (20111201210102), we get a palindrome (221123303321122).

The spelling of 201012102111020 in words is "two hundred one trillion, twelve billion, one hundred two million, one hundred eleven thousand, twenty".