220202020120021 has 8 divisors (see below), whose sum is σ = 220224735208800. Its totient is φ = 220179305846448.

The previous prime is 220202020120001. The next prime is 220202020120097. The reversal of 220202020120021 is 120021020202022.

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 220202020120021 - 2¹¹ = 220202020117973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220202020119977 and 220202020120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202020120001) 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, 641242650 + ... + 641585956.

It is an arithmetic number, because the mean of its divisors is an integer number (27528091901100).

Almost surely, 2^{220202020120021} is an apocalyptic number.

It is an amenable number.

220202020120021 is a deficient number, since it is larger than the sum of its proper divisors (22715088779).

220202020120021 is a wasteful number, since it uses less digits than its factorization.

220202020120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407603.

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

Adding to 220202020120021 its reverse (120021020202022), we get a palindrome (340223040322043).

The spelling of 220202020120021 in words is "two hundred twenty trillion, two hundred two billion, twenty million, one hundred twenty thousand, twenty-one".