202011121022221 has 12 divisors (see below), whose sum is σ = 238302282463200. Its totient is φ = 170713623396120.

The previous prime is 202011121022189. The next prime is 202011121022281. The reversal of 202011121022221 is 122220121110202.

It is not a de Polignac number, because 202011121022221 - 2⁵ = 202011121022189 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 (202011121022281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29032925671 + ... + 29032932628.

It is an arithmetic number, because the mean of its divisors is an integer number (19858523538600).

Almost surely, 2^{202011121022221} is an apocalyptic number.

It is an amenable number.

202011121022221 is a deficient number, since it is larger than the sum of its proper divisors (36291161440979).

202011121022221 is an equidigital number, since it uses as much as digits as its factorization.

202011121022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58065858384 (or 58065858377 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202011121022221 its reverse (122220121110202), we get a palindrome (324231242132423).

The spelling of 202011121022221 in words is "two hundred two trillion, eleven billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-one".