100020000202121 has 8 divisors (see below), whose sum is σ = 101659831937664. Its totient is φ = 98380173615120.

The previous prime is 100020000202093. The next prime is 100020000202153. The reversal of 100020000202121 is 121202000020001.

It is a happy number.

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 100020000202121 - 2¹⁰ = 100020000201097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100020000202721) 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, 69858986 + ... + 71276348.

It is an arithmetic number, because the mean of its divisors is an integer number (12707478992208).

Almost surely, 2^{100020000202121} is an apocalyptic number.

It is an amenable number.

100020000202121 is a deficient number, since it is larger than the sum of its proper divisors (1639831735543).

100020000202121 is a wasteful number, since it uses less digits than its factorization.

100020000202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574271.

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

Adding to 100020000202121 its reverse (121202000020001), we get a palindrome (221222000222122).

The spelling of 100020000202121 in words is "one hundred trillion, twenty billion, two hundred two thousand, one hundred twenty-one".