202212202021 has 8 divisors (see below), whose sum is σ = 214273940544. Its totient is φ = 190169008320.

The previous prime is 202212202009. The next prime is 202212202057. The reversal of 202212202021 is 120202212202.

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 202212202021 - 2²⁵ = 202178647589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202212201986 and 202212202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212202061) 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, 4613745 + ... + 4657366.

It is an arithmetic number, because the mean of its divisors is an integer number (26784242568).

Almost surely, 2^202212202021 is an apocalyptic number.

It is an amenable number.

202212202021 is a deficient number, since it is larger than the sum of its proper divisors (12061738523).

202212202021 is a wasteful number, since it uses less digits than its factorization.

202212202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272411.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202212202021 its reverse (120202212202), we get a palindrome (322414414223).

The spelling of 202212202021 in words is "two hundred two billion, two hundred twelve million, two hundred two thousand, twenty-one".