202220111110021 has 8 divisors (see below), whose sum is σ = 206807382720000. Its totient is φ = 197683527584400.

The previous prime is 202220111110019. The next prime is 202220111110049. The reversal of 202220111110021 is 120011111022202.

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 202220111110021 - 2¹ = 202220111110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220111109977 and 202220111110004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220111110421) 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, 12672013021 + ... + 12672028978.

It is an arithmetic number, because the mean of its divisors is an integer number (25850922840000).

Almost surely, 2^{202220111110021} is an apocalyptic number.

It is an amenable number.

202220111110021 is a deficient number, since it is larger than the sum of its proper divisors (4587271609979).

202220111110021 is a wasteful number, since it uses less digits than its factorization.

202220111110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25344042179.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202220111110021 its reverse (120011111022202), we get a palindrome (322231222132223).

The spelling of 202220111110021 in words is "two hundred two trillion, two hundred twenty billion, one hundred eleven million, one hundred ten thousand, twenty-one".