201020101121210 has 48 divisors (see below), whose sum is σ = 421239546540576. Its totient is φ = 68867458545312.

The previous prime is 201020101121209. The next prime is 201020101121221. The reversal of 201020101121210 is 12121101020102.

It is a super-2 number, since 2×201020101121210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159248612 + ... + 160505951.

It is an arithmetic number, because the mean of its divisors is an integer number (8775823886262).

Almost surely, 2^{201020101121210} is an apocalyptic number.

201020101121210 is an abundant number, since it is smaller than the sum of its proper divisors (220219445419366).

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

201020101121210 is a wasteful number, since it uses less digits than its factorization.

201020101121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319755867 (or 319755860 counting only the distinct ones).

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

Adding to 201020101121210 its reverse (12121101020102), we get a palindrome (213141202141312).

The spelling of 201020101121210 in words is "two hundred one trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, two hundred ten".