10002120212986 has 64 divisors (see below), whose sum is σ = 16531639971840. Its totient is φ = 4500919834560.

The previous prime is 10002120212927. The next prime is 10002120213091. The reversal of 10002120212986 is 68921202120001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1771224415 + ... + 1771230061.

It is an arithmetic number, because the mean of its divisors is an integer number (258306874560).

Almost surely, 2^{10002120212986} is an apocalyptic number.

10002120212986 is a deficient number, since it is larger than the sum of its proper divisors (6529519758854).

10002120212986 is a wasteful number, since it uses less digits than its factorization.

10002120212986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339.

The product of its (nonzero) digits is 6912, while the sum is 34.

Adding to 10002120212986 its reverse (68921202120001), we get a palindrome (78923322332987).

The spelling of 10002120212986 in words is "ten trillion, two billion, one hundred twenty million, two hundred twelve thousand, nine hundred eighty-six".