12210109992 has 64 divisors (see below), whose sum is σ = 35702088000. Its totient is φ = 3855822912.

The previous prime is 12210109991. The next prime is 12210109993. The reversal of 12210109992 is 29990101221.

It is an interprime number because it is at equal distance from previous prime (12210109991) and next prime (12210109993).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12210109991) 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, 1483483 + ... + 1491690.

It is an arithmetic number, because the mean of its divisors is an integer number (557845125).

Almost surely, 2^12210109992 is an apocalyptic number.

12210109992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210109992 is an abundant number, since it is smaller than the sum of its proper divisors (23491978008).

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

12210109992 is a wasteful number, since it uses less digits than its factorization.

12210109992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975207 (or 2975197 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 12210109992 in words is "twelve billion, two hundred ten million, one hundred nine thousand, nine hundred ninety-two".