210121202100002 has 16 divisors (see below), whose sum is σ = 315317935072320. Its totient is φ = 105015232658448.

The previous prime is 210121202100001. The next prime is 210121202100041. The reversal of 210121202100002 is 200001202121012.

It is a self number, because there is not a number n which added to its sum of digits gives 210121202100002.

It is not an unprimeable number, because it can be changed into a prime (210121202100001) 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, 45018293 + ... + 49466039.

It is an arithmetic number, because the mean of its divisors is an integer number (19707370942020).

Almost surely, 2^{210121202100002} is an apocalyptic number.

210121202100002 is a deficient number, since it is larger than the sum of its proper divisors (105196732972318).

210121202100002 is a wasteful number, since it uses less digits than its factorization.

210121202100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457945.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210121202100002 its reverse (200001202121012), we get a palindrome (410122404221014).

The spelling of 210121202100002 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred two million, one hundred thousand, two".