10202122001987 has 16 divisors (see below), whose sum is σ = 10554550063200. Its totient is φ = 9855503008512.

The previous prime is 10202122001927. The next prime is 10202122002019. The reversal of 10202122001987 is 78910022120201.

It is not a de Polignac number, because 10202122001987 - 2²⁰ = 10202120953411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202122001927) 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, 1924208 + ... + 4909869.

It is an arithmetic number, because the mean of its divisors is an integer number (659659378950).

Almost surely, 2^{10202122001987} is an apocalyptic number.

10202122001987 is a deficient number, since it is larger than the sum of its proper divisors (352428061213).

10202122001987 is a wasteful number, since it uses less digits than its factorization.

10202122001987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834502.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 10202122001987 in words is "ten trillion, two hundred two billion, one hundred twenty-two million, one thousand, nine hundred eighty-seven".