12212011404 has 72 divisors (see below), whose sum is σ = 33008871168. Its totient is φ = 3793267200.

The previous prime is 12212011393. The next prime is 12212011423. The reversal of 12212011404 is 40411021221.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 36972 + ... + 160595.

It is an arithmetic number, because the mean of its divisors is an integer number (458456544).

Almost surely, 2^12212011404 is an apocalyptic number.

It is an amenable number.

12212011404 is an abundant number, since it is smaller than the sum of its proper divisors (20796859764).

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

12212011404 is a wasteful number, since it uses less digits than its factorization.

12212011404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197695 (or 197690 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12212011404 its reverse (40411021221), we get a palindrome (52623032625).

The spelling of 12212011404 in words is "twelve billion, two hundred twelve million, eleven thousand, four hundred four".