202221111010101 has 32 divisors (see below), whose sum is σ = 279168281548800. Its totient is φ = 130052143710720.

The previous prime is 202221111010099. The next prime is 202221111010129. The reversal of 202221111010101 is 101010111122202.

It is a happy number.

It is not a de Polignac number, because 202221111010101 - 2¹ = 202221111010099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221111010151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462804591 + ... + 463241331.

It is an arithmetic number, because the mean of its divisors is an integer number (8724008798400).

Almost surely, 2^{202221111010101} is an apocalyptic number.

It is an amenable number.

202221111010101 is a deficient number, since it is larger than the sum of its proper divisors (76947170538699).

202221111010101 is a wasteful number, since it uses less digits than its factorization.

202221111010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441389.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 202221111010101 its reverse (101010111122202), we get a palindrome (303231222132303).

The spelling of 202221111010101 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred eleven million, ten thousand, one hundred one".