12212011124 has 6 divisors (see below), whose sum is σ = 21371019474. Its totient is φ = 6106005560.

The previous prime is 12212011087. The next prime is 12212011139. The reversal of 12212011124 is 42111021221.

It can be written as a sum of positive squares in only one way, i.e., 11737555600 + 474455524 = 108340^2 + 21782^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526501387 + ... + 1526501394.

It is an arithmetic number, because the mean of its divisors is an integer number (3561836579).

Almost surely, 2^12212011124 is an apocalyptic number.

It is an amenable number.

12212011124 is a deficient number, since it is larger than the sum of its proper divisors (9159008350).

12212011124 is a wasteful number, since it uses less digits than its factorization.

12212011124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053002785 (or 3053002783 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212011124 its reverse (42111021221), we get a palindrome (54323032345).

The spelling of 12212011124 in words is "twelve billion, two hundred twelve million, eleven thousand, one hundred twenty-four".