202101222220221 has 8 divisors (see below), whose sum is σ = 269866329230304. Its totient is φ = 134535131678480.

The previous prime is 202101222220201. The next prime is 202101222220241. The reversal of 202101222220221 is 122022222101202.

It is an interprime number because it is at equal distance from previous prime (202101222220201) and next prime (202101222220241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202101222220221 - 2⁵ = 202101222220189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101222220201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49754114715 + ... + 49754118776.

It is an arithmetic number, because the mean of its divisors is an integer number (33733291153788).

Almost surely, 2^{202101222220221} is an apocalyptic number.

It is an amenable number.

202101222220221 is a deficient number, since it is larger than the sum of its proper divisors (67765107010083).

202101222220221 is an equidigital number, since it uses as much as digits as its factorization.

202101222220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99508234171.

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

Adding to 202101222220221 its reverse (122022222101202), we get a palindrome (324123444321423).

The spelling of 202101222220221 in words is "two hundred two trillion, one hundred one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".