21020000120196 has 48 divisors (see below), whose sum is σ = 61149091261440. Its totient is φ = 5459740290720.

The previous prime is 21020000120183. The next prime is 21020000120213. The reversal of 21020000120196 is 69102100002012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11374458016 + ... + 11374459863.

It is an arithmetic number, because the mean of its divisors is an integer number (1273939401280).

Almost surely, 2^{21020000120196} is an apocalyptic number.

It is an amenable number.

21020000120196 is an abundant number, since it is smaller than the sum of its proper divisors (40129091141244).

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

21020000120196 is a wasteful number, since it uses less digits than its factorization.

21020000120196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22748917904 (or 22748917902 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 21020000120196 in words is "twenty-one trillion, twenty billion, one hundred twenty thousand, one hundred ninety-six".