12100021102 has 24 divisors (see below), whose sum is σ = 20508101424. Its totient is φ = 5341811904.

The previous prime is 12100021097. The next prime is 12100021111. The reversal of 12100021102 is 20112000121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 770463 + ... + 786010.

It is an arithmetic number, because the mean of its divisors is an integer number (854504226).

Almost surely, 2^12100021102 is an apocalyptic number.

12100021102 is a deficient number, since it is larger than the sum of its proper divisors (8408080322).

12100021102 is a wasteful number, since it uses less digits than its factorization.

12100021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556524 (or 1556511 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12100021102 its reverse (20112000121), we get a palindrome (32212021223).

The spelling of 12100021102 in words is "twelve billion, one hundred million, twenty-one thousand, one hundred two".