202101012121 has 8 divisors (see below), whose sum is σ = 213257543040. Its totient is φ = 191141942112.

The previous prime is 202101012107. The next prime is 202101012131. The reversal of 202101012121 is 121210101202.

202101012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202101012121 - 2⁵ = 202101012089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202101012131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49363125 + ... + 49367218.

It is an arithmetic number, because the mean of its divisors is an integer number (26657192880).

Almost surely, 2^202101012121 is an apocalyptic number.

It is an amenable number.

202101012121 is a deficient number, since it is larger than the sum of its proper divisors (11156530919).

202101012121 is an equidigital number, since it uses as much as digits as its factorization.

202101012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98730455.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202101012121 its reverse (121210101202), we get a palindrome (323311113323).

The spelling of 202101012121 in words is "two hundred two billion, one hundred one million, twelve thousand, one hundred twenty-one".