12200742021 has 16 divisors (see below), whose sum is σ = 17715862080. Its totient is φ = 7423785600.

The previous prime is 12200741981. The next prime is 12200742049. The reversal of 12200742021 is 12024700221.

It is not a de Polignac number, because 12200742021 - 2¹⁴ = 12200725637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200742721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754055 + ... + 1760996.

It is an arithmetic number, because the mean of its divisors is an integer number (1107241380).

Almost surely, 2^12200742021 is an apocalyptic number.

It is an amenable number.

12200742021 is a deficient number, since it is larger than the sum of its proper divisors (5515120059).

12200742021 is a wasteful number, since it uses less digits than its factorization.

12200742021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515156.

The product of its (nonzero) digits is 448, while the sum is 21.

The spelling of 12200742021 in words is "twelve billion, two hundred million, seven hundred forty-two thousand, twenty-one".