12011213102 has 32 divisors (see below), whose sum is σ = 21219019200. Its totient is φ = 5096666400.

The previous prime is 12011213101. The next prime is 12011213107. The reversal of 12011213102 is 20131211021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011213101) 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, 17393 + ... + 155964.

It is an arithmetic number, because the mean of its divisors is an integer number (663094350).

Almost surely, 2^12011213102 is an apocalyptic number.

12011213102 is a deficient number, since it is larger than the sum of its proper divisors (9207806098).

12011213102 is a wasteful number, since it uses less digits than its factorization.

12011213102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173481 (or 173467 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12011213102 its reverse (20131211021), we get a palindrome (32142424123).

The spelling of 12011213102 in words is "twelve billion, eleven million, two hundred thirteen thousand, one hundred two".