9912011223402 has 12 divisors (see below), whose sum is σ = 21476024317410. Its totient is φ = 3304003741128.

The previous prime is 9912011223391. The next prime is 9912011223497. The reversal of 9912011223402 is 2043221102199.

9912011223402 is a `hidden beast` number, since 9 + 9 + 1 + 20 + 1 + 1 + 223 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8743322661921 + 1168688561481 = 2956911^2 + 1081059^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275333645077 + ... + 275333645112.

Almost surely, 2^{9912011223402} is an apocalyptic number.

9912011223402 is an abundant number, since it is smaller than the sum of its proper divisors (11564013094008).

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

9912011223402 is a wasteful number, since it uses less digits than its factorization.

9912011223402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550667290197 (or 550667290194 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 9912011223402 in words is "nine trillion, nine hundred twelve billion, eleven million, two hundred twenty-three thousand, four hundred two".