202120211220103 has 16 divisors (see below), whose sum is σ = 221765936641920. Its totient is φ = 182687624532000.

The previous prime is 202120211220071. The next prime is 202120211220119. The reversal of 202120211220103 is 301022112021202.

It is a cyclic number.

It is not a de Polignac number, because 202120211220103 - 2⁵ = 202120211220071 is a prime.

It is a super-2 number, since 2×202120211220103² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120211220133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28802673 + ... + 35125978.

It is an arithmetic number, because the mean of its divisors is an integer number (13860371040120).

Almost surely, 2^{202120211220103} is an apocalyptic number.

202120211220103 is a deficient number, since it is larger than the sum of its proper divisors (19645725421817).

202120211220103 is a wasteful number, since it uses less digits than its factorization.

202120211220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63930318.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 202120211220103 its reverse (301022112021202), we get a palindrome (503142323241305).

The spelling of 202120211220103 in words is "two hundred two trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty thousand, one hundred three".