202110121202102 has 4 divisors (see below), whose sum is σ = 303165181803156. Its totient is φ = 101055060601050.

The previous prime is 202110121202047. The next prime is 202110121202107. The reversal of 202110121202102 is 201202121011202.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202110121202107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50527530300524 + ... + 50527530300527.

It is an arithmetic number, because the mean of its divisors is an integer number (75791295450789).

Almost surely, 2^{202110121202102} is an apocalyptic number.

202110121202102 is a deficient number, since it is larger than the sum of its proper divisors (101055060601054).

202110121202102 is a wasteful number, since it uses less digits than its factorization.

202110121202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101055060601053.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202110121202102 its reverse (201202121011202), we get a palindrome (403312242213304).

The spelling of 202110121202102 in words is "two hundred two trillion, one hundred ten billion, one hundred twenty-one million, two hundred two thousand, one hundred two".