100102000202021 has 4 divisors (see below), whose sum is σ = 100102368968544. Its totient is φ = 100101631435500.

The previous prime is 100102000201963. The next prime is 100102000202089. The reversal of 100102000202021 is 120202000201001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100102000202021 - 2¹⁰ = 100102000200997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100102000201993 and 100102000202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102000202221) 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, 183975785 + ... + 184519086.

It is an arithmetic number, because the mean of its divisors is an integer number (25025592242136).

Almost surely, 2^{100102000202021} is an apocalyptic number.

It is an amenable number.

100102000202021 is a deficient number, since it is larger than the sum of its proper divisors (368766523).

100102000202021 is an equidigital number, since it uses as much as digits as its factorization.

100102000202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368766522.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100102000202021 its reverse (120202000201001), we get a palindrome (220304000403022).

The spelling of 100102000202021 in words is "one hundred trillion, one hundred two billion, two hundred two thousand, twenty-one".