12021490136 has 32 divisors (see below), whose sum is σ = 22784282640. Its totient is φ = 5945745408.

The previous prime is 12021490127. The next prime is 12021490141. The reversal of 12021490136 is 63109412021.

It is a junction number, because it is equal to n+sod(n) for n = 12021490099 and 12021490108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2804651 + ... + 2808933.

Almost surely, 2^12021490136 is an apocalyptic number.

It is an amenable number.

12021490136 is a deficient number, since it is larger than the sum of its proper divisors (10762792504).

12021490136 is a wasteful number, since it uses less digits than its factorization.

12021490136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8003 (or 7999 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 12021490136 in words is "twelve billion, twenty-one million, four hundred ninety thousand, one hundred thirty-six".