100021102202021 has 32 divisors (see below), whose sum is σ = 134332256287488. Its totient is φ = 71922791946240.

The previous prime is 100021102201991. The next prime is 100021102202041. The reversal of 100021102202021 is 120202201120001.

It is a cyclic number.

It is not a de Polignac number, because 100021102202021 - 2¹⁰ = 100021102200997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100021102201987 and 100021102202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021102202041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10684940 + ... + 17725973.

It is an arithmetic number, because the mean of its divisors is an integer number (4197883008984).

Almost surely, 2^{100021102202021} is an apocalyptic number.

100021102202021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100021102202021 is a deficient number, since it is larger than the sum of its proper divisors (34311154085467).

100021102202021 is a wasteful number, since it uses less digits than its factorization.

100021102202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28414461.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100021102202021 its reverse (120202201120001), we get a palindrome (220223303322022).

The spelling of 100021102202021 in words is "one hundred trillion, twenty-one billion, one hundred two million, two hundred two thousand, twenty-one".