12202012111121 has 12 divisors (see below), whose sum is σ = 14297784495588. Its totient is φ = 10382525419392.

The previous prime is 12202012111111. The next prime is 12202012111153. The reversal of 12202012111121 is 12111121020221.

It can be written as a sum of positive squares in 2 ways, for example, as 9028943232400 + 3173068878721 = 3004820^2 + 1781311^2 .

It is not a de Polignac number, because 12202012111121 - 2⁶ = 12202012111057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202012111121.

It is not an unprimeable number, because it can be changed into a prime (12202012111111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 908827796 + ... + 908841221.

It is an arithmetic number, because the mean of its divisors is an integer number (1191482041299).

Almost surely, 2^{12202012111121} is an apocalyptic number.

It is an amenable number.

12202012111121 is a deficient number, since it is larger than the sum of its proper divisors (2095772384467).

12202012111121 is a wasteful number, since it uses less digits than its factorization.

12202012111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817669168 (or 1817669161 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12202012111121 its reverse (12111121020221), we get a palindrome (24313133131342).

The spelling of 12202012111121 in words is "twelve trillion, two hundred two billion, twelve million, one hundred eleven thousand, one hundred twenty-one".