100202102111021 has 8 divisors (see below), whose sum is σ = 100818096611904. Its totient is φ = 99586122948000.

The previous prime is 100202102111011. The next prime is 100202102111029. The reversal of 100202102111021 is 120111201202001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100202102111021 - 2¹⁰ = 100202102109997 is a prime.

It is a super-2 number, since 2×100202102111021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100202102110987 and 100202102111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100202102111029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9411896 + ... + 16999646.

It is an arithmetic number, because the mean of its divisors is an integer number (12602262076488).

Almost surely, 2^{100202102111021} is an apocalyptic number.

It is an amenable number.

100202102111021 is a deficient number, since it is larger than the sum of its proper divisors (615994500883).

100202102111021 is an equidigital number, since it uses as much as digits as its factorization.

100202102111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7668931.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100202102111021 its reverse (120111201202001), we get a palindrome (220313303313022).

The spelling of 100202102111021 in words is "one hundred trillion, two hundred two billion, one hundred two million, one hundred eleven thousand, twenty-one".