200102010121 has 24 divisors (see below), whose sum is σ = 218186218880. Its totient is φ = 182429755200.

The previous prime is 200102010107. The next prime is 200102010127. The reversal of 200102010121 is 121010201002.

It is not a de Polignac number, because 200102010121 - 2¹³ = 200102001929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200102010098 and 200102010107.

It is not an unprimeable number, because it can be changed into a prime (200102010127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61398190 + ... + 61401448.

Almost surely, 2^200102010121 is an apocalyptic number.

It is an amenable number.

200102010121 is a deficient number, since it is larger than the sum of its proper divisors (18084208759).

200102010121 is a wasteful number, since it uses less digits than its factorization.

200102010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937 (or 3836 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 200102010121 its reverse (121010201002), we get a palindrome (321112211123).

The spelling of 200102010121 in words is "two hundred billion, one hundred two million, ten thousand, one hundred twenty-one".