12201021146124 has 72 divisors (see below), whose sum is σ = 30898090964832. Its totient is φ = 4059544366080.

The previous prime is 12201021146107. The next prime is 12201021146143. The reversal of 12201021146124 is 42164112010221.

12201021146124 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 10 + 21 + 14 + 612 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78933177 + ... + 79087599.

Almost surely, 2^{12201021146124} is an apocalyptic number.

It is an amenable number.

12201021146124 is an abundant number, since it is smaller than the sum of its proper divisors (18697069818708).

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

12201021146124 is a wasteful number, since it uses less digits than its factorization.

12201021146124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158447 (or 158442 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 12201021146124 its reverse (42164112010221), we get a palindrome (54365133156345).

The spelling of 12201021146124 in words is "twelve trillion, two hundred one billion, twenty-one million, one hundred forty-six thousand, one hundred twenty-four".