202101112312221 has 8 divisors (see below), whose sum is σ = 269469271473280. Its totient is φ = 134733514012992.

The previous prime is 202101112312201. The next prime is 202101112312223. The reversal of 202101112312221 is 122213211101202.

202101112312221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 202101112312221 - 2³⁷ = 201963673358749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101112312223) 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, 139373941 + ... + 140816538.

It is an arithmetic number, because the mean of its divisors is an integer number (33683658934160).

Almost surely, 2^{202101112312221} is an apocalyptic number.

It is an amenable number.

202101112312221 is a deficient number, since it is larger than the sum of its proper divisors (67368159161059).

202101112312221 is a wasteful number, since it uses less digits than its factorization.

202101112312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280430915.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 202101112312221 its reverse (122213211101202), we get a palindrome (324314323413423).

The spelling of 202101112312221 in words is "two hundred two trillion, one hundred one billion, one hundred twelve million, three hundred twelve thousand, two hundred twenty-one".