201012201220122 has 64 divisors (see below), whose sum is σ = 474015507840000. Its totient is φ = 63004561204464.

The previous prime is 201012201220109. The next prime is 201012201220139. The reversal of 201012201220122 is 221022102210102.

It is a happy number.

201012201220122 is a `hidden beast` number, since 2 + 0 + 101 + 220 + 1 + 220 + 122 = 666.

201012201220122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201012201220095 and 201012201220104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1371499372 + ... + 1371645927.

It is an arithmetic number, because the mean of its divisors is an integer number (7406492310000).

Almost surely, 2^{201012201220122} is an apocalyptic number.

201012201220122 is an abundant number, since it is smaller than the sum of its proper divisors (273003306619878).

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

201012201220122 is a wasteful number, since it uses less digits than its factorization.

201012201220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743145392 (or 2743145386 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201012201220122 its reverse (221022102210102), we get a palindrome (422034303430224).

The spelling of 201012201220122 in words is "two hundred one trillion, twelve billion, two hundred one million, two hundred twenty thousand, one hundred twenty-two".