201220122 has 16 divisors (see below), whose sum is σ = 402803712. Its totient is φ = 67012800.

The previous prime is 201220073. The next prime is 201220199. The reversal of 201220122 is 221022102.

It is a junction number, because it is equal to n+sod(n) for n = 201220098 and 201220107.

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, 7663 + ... + 21474.

It is an arithmetic number, because the mean of its divisors is an integer number (25175232).

Almost surely, 2^201220122 is an apocalyptic number.

201220122 is an abundant number, since it is smaller than the sum of its proper divisors (201583590).

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

201220122 is a wasteful number, since it uses less digits than its factorization.

201220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30293.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 201220122 is about 14185.2078588930. The cubic root of 201220122 is about 585.9903569412.

Adding to 201220122 its reverse (221022102), we get a palindrome (422242224).

The spelling of 201220122 in words is "two hundred one million, two hundred twenty thousand, one hundred twenty-two".