202101202222221 has 16 divisors (see below), whose sum is σ = 273502661688000. Its totient is φ = 132717122279808.

The previous prime is 202101202222219. The next prime is 202101202222267. The reversal of 202101202222221 is 122222202101202.

It is not a de Polignac number, because 202101202222221 - 2¹ = 202101202222219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101202222121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18518046 + ... + 27333503.

It is an arithmetic number, because the mean of its divisors is an integer number (17093916355500).

Almost surely, 2^{202101202222221} is an apocalyptic number.

It is an amenable number.

202101202222221 is a deficient number, since it is larger than the sum of its proper divisors (71401459465779).

202101202222221 is a wasteful number, since it uses less digits than its factorization.

202101202222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45873548.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202101202222221 its reverse (122222202101202), we get a palindrome (324323404323423).

The spelling of 202101202222221 in words is "two hundred two trillion, one hundred one billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-one".