202220010220021 has 8 divisors (see below), whose sum is σ = 202484193168960. Its totient is φ = 201955944251328.

The previous prime is 202220010219961. The next prime is 202220010220031. The reversal of 202220010220021 is 120022010022202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202220010220021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220010219977 and 202220010220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220010220031) 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, 25785201 + ... + 32700406.

It is an arithmetic number, because the mean of its divisors is an integer number (25310524146120).

Almost surely, 2^{202220010220021} is an apocalyptic number.

It is an amenable number.

202220010220021 is a deficient number, since it is larger than the sum of its proper divisors (264182948939).

202220010220021 is an equidigital number, since it uses as much as digits as its factorization.

202220010220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58490123.

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

Adding to 202220010220021 its reverse (120022010022202), we get a palindrome (322242020242223).

The spelling of 202220010220021 in words is "two hundred two trillion, two hundred twenty billion, ten million, two hundred twenty thousand, twenty-one".