202120211102 has 4 divisors (see below), whose sum is σ = 303180316656. Its totient is φ = 101060105550.

The previous prime is 202120211101. The next prime is 202120211107. The reversal of 202120211102 is 201112021202.

202120211102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (202120211101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50530052774 + ... + 50530052777.

It is an arithmetic number, because the mean of its divisors is an integer number (75795079164).

Almost surely, 2^202120211102 is an apocalyptic number.

202120211102 is a deficient number, since it is larger than the sum of its proper divisors (101060105554).

202120211102 is a wasteful number, since it uses less digits than its factorization.

202120211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101060105553.

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

Adding to 202120211102 its reverse (201112021202), we get a palindrome (403232232304).

The spelling of 202120211102 in words is "two hundred two billion, one hundred twenty million, two hundred eleven thousand, one hundred two".