202212021012221 has 32 divisors (see below), whose sum is σ = 221622400995840. Its totient is φ = 182974380724800.

The previous prime is 202212021012203. The next prime is 202212021012223. The reversal of 202212021012221 is 122210120212202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202212021012221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202212021012193 and 202212021012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202212021012223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12906867830 + ... + 12906883496.

It is an arithmetic number, because the mean of its divisors is an integer number (6925700031120).

Almost surely, 2^{202212021012221} is an apocalyptic number.

It is an amenable number.

202212021012221 is a deficient number, since it is larger than the sum of its proper divisors (19410379983619).

202212021012221 is a wasteful number, since it uses less digits than its factorization.

202212021012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20105.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202212021012221 its reverse (122210120212202), we get a palindrome (324422141224423).

The spelling of 202212021012221 in words is "two hundred two trillion, two hundred twelve billion, twenty-one million, twelve thousand, two hundred twenty-one".