202212221111021 has 8 divisors (see below), whose sum is σ = 220620164032800. Its totient is φ = 183808447144240.

The previous prime is 202212221110961. The next prime is 202212221111029. The reversal of 202212221111021 is 120111122212202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202212221111021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202212221110984 and 202212221111002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212221111029) 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, 1042137326 + ... + 1042331343.

It is an arithmetic number, because the mean of its divisors is an integer number (27577520504100).

Almost surely, 2^{202212221111021} is an apocalyptic number.

It is an amenable number.

202212221111021 is a deficient number, since it is larger than the sum of its proper divisors (18407942921779).

202212221111021 is a wasteful number, since it uses less digits than its factorization.

202212221111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084477499.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202212221111021 its reverse (120111122212202), we get a palindrome (322323343323223).

The spelling of 202212221111021 in words is "two hundred two trillion, two hundred twelve billion, two hundred twenty-one million, one hundred eleven thousand, twenty-one".