12001211022112 has 48 divisors (see below), whose sum is σ = 26941632678072. Its totient is φ = 5213195735040.

The previous prime is 12001211022107. The next prime is 12001211022127. The reversal of 12001211022112 is 21122011210021.

It can be written as a sum of positive squares in 4 ways, for example, as 5961000378256 + 6040210643856 = 2441516^2 + 2457684^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 848494839 + ... + 848508982.

Almost surely, 2^{12001211022112} is an apocalyptic number.

It is an amenable number.

12001211022112 is an abundant number, since it is smaller than the sum of its proper divisors (14940421655960).

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

12001211022112 is a wasteful number, since it uses less digits than its factorization.

12001211022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697003861 (or 1697003853 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12001211022112 its reverse (21122011210021), we get a palindrome (33123222232133).

The spelling of 12001211022112 in words is "twelve trillion, one billion, two hundred eleven million, twenty-two thousand, one hundred twelve".