100021002001012 has 12 divisors (see below), whose sum is σ = 175943679687076. Its totient is φ = 49751379233280.

The previous prime is 100021002000979. The next prime is 100021002001013. The reversal of 100021002001012 is 210100200120001.

It can be written as a sum of positive squares in 2 ways, for example, as 11769331977316 + 88251670023696 = 3430646^2 + 9394236^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100021002001012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021002001013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64780440939 + ... + 64780442482.

Almost surely, 2^{100021002001012} is an apocalyptic number.

It is an amenable number.

100021002001012 is a deficient number, since it is larger than the sum of its proper divisors (75922677686064).

100021002001012 is a wasteful number, since it uses less digits than its factorization.

100021002001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129560883618 (or 129560883616 counting only the distinct ones).

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

Adding to 100021002001012 its reverse (210100200120001), we get a palindrome (310121202121013).

The spelling of 100021002001012 in words is "one hundred trillion, twenty-one billion, two million, one thousand, twelve".