202121102012002 has 8 divisors (see below), whose sum is σ = 303183694417500. Its totient is φ = 101059870539504.

The previous prime is 202121102011991. The next prime is 202121102012021. The reversal of 202121102012002 is 200210201121202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 193065161354521 + 9055940657481 = 13894789^2 + 3009309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×202121102012002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339861877 + ... + 340456072.

Almost surely, 2^{202121102012002} is an apocalyptic number.

202121102012002 is a deficient number, since it is larger than the sum of its proper divisors (101062592405498).

202121102012002 is a wasteful number, since it uses less digits than its factorization.

202121102012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680466500.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202121102012002 its reverse (200210201121202), we get a palindrome (402331303133204).

The spelling of 202121102012002 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred two million, twelve thousand, two".