202101012002 has 12 divisors (see below), whose sum is σ = 303285388770. Its totient is φ = 101005901568.

The previous prime is 202101011999. The next prime is 202101012013. The reversal of 202101012002 is 200210101202.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 193293001801 + 8808010201 = 439651^2 + 93851^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 14713874 + ... + 14727602.

Almost surely, 2^202101012002 is an apocalyptic number.

202101012002 is a deficient number, since it is larger than the sum of its proper divisors (101184376768).

202101012002 is an frugal number, since it uses more digits than its factorization.

202101012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19157 (or 16444 counting only the distinct ones).

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

Adding to 202101012002 its reverse (200210101202), we get a palindrome (402311113204).

It can be divided in two parts, 20210101200 and 2, that added together give a palindrome (20210101202).

The spelling of 202101012002 in words is "two hundred two billion, one hundred one million, twelve thousand, two".