201121122 has 16 divisors (see below), whose sum is σ = 413114112. Its totient is φ = 65228400.

The previous prime is 201121117. The next prime is 201121133. The reversal of 201121122 is 221121102.

It is a junction number, because it is equal to n+sod(n) for n = 201121098 and 201121107.

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, 452754 + ... + 453197.

It is an arithmetic number, because the mean of its divisors is an integer number (25819632).

Almost surely, 2^201121122 is an apocalyptic number.

201121122 is an abundant number, since it is smaller than the sum of its proper divisors (211992990).

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

201121122 is a wasteful number, since it uses less digits than its factorization.

201121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905993.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 201121122 is about 14181.7178790159. The cubic root of 201121122 is about 585.8942390489.

Adding to 201121122 its reverse (221121102), we get a palindrome (422242224).

The spelling of 201121122 in words is "two hundred one million, one hundred twenty-one thousand, one hundred twenty-two".