202220111120021 has 8 divisors (see below), whose sum is σ = 212863645596000. Its totient is φ = 191576613717360.

The previous prime is 202220111120003. The next prime is 202220111120047. The reversal of 202220111120021 is 120021111022202.

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 202220111120021 - 2²⁶ = 202220044011157 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 (202220111120821) 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, 2298086 + ... + 20241576.

It is an arithmetic number, because the mean of its divisors is an integer number (26607955699500).

Almost surely, 2^{202220111120021} is an apocalyptic number.

It is an amenable number.

202220111120021 is a deficient number, since it is larger than the sum of its proper divisors (10643534475979).

202220111120021 is a wasteful number, since it uses less digits than its factorization.

202220111120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18536659.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202220111120021 its reverse (120021111022202), we get a palindrome (322241222142223).

The spelling of 202220111120021 in words is "two hundred two trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty thousand, twenty-one".