9912023211011 has 16 divisors (see below), whose sum is σ = 10537162120800. Its totient is φ = 9291620712960.

The previous prime is 9912023210989. The next prime is 9912023211061. The reversal of 9912023211011 is 1101123202199.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9912023211011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9912023211061) 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, 4250756 + ... + 6155726.

It is an arithmetic number, because the mean of its divisors is an integer number (658572632550).

Almost surely, 2^{9912023211011} is an apocalyptic number.

9912023211011 is a deficient number, since it is larger than the sum of its proper divisors (625138909789).

9912023211011 is a wasteful number, since it uses less digits than its factorization.

9912023211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906214.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 9912023211011 in words is "nine trillion, nine hundred twelve billion, twenty-three million, two hundred eleven thousand, eleven".