100021020002121 has 8 divisors (see below), whose sum is σ = 133363172543040. Its totient is φ = 66679773731312.

The previous prime is 100021020002117. The next prime is 100021020002171. The reversal of 100021020002121 is 121200020120001.

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 100021020002121 - 2² = 100021020002117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100021020002097 and 100021020002106.

It is not an unprimeable number, because it can be changed into a prime (100021020002171) 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, 226309965 + ... + 226751498.

It is an arithmetic number, because the mean of its divisors is an integer number (16670396567880).

Almost surely, 2^{100021020002121} is an apocalyptic number.

It is an amenable number.

100021020002121 is a deficient number, since it is larger than the sum of its proper divisors (33342152540919).

100021020002121 is an equidigital number, since it uses as much as digits as its factorization.

100021020002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453135055.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100021020002121 its reverse (121200020120001), we get a palindrome (221221040122122).

The spelling of 100021020002121 in words is "one hundred trillion, twenty-one billion, twenty million, two thousand, one hundred twenty-one".