220202122010021 has 12 divisors (see below), whose sum is σ = 226532796874272. Its totient is φ = 214028230446576.

The previous prime is 220202122009913. The next prime is 220202122010029. The reversal of 220202122010021 is 120010221202022.

It is a happy number.

It is not a de Polignac number, because 220202122010021 - 2⁴² = 215804075498917 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 (220202122010029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366015521 + ... + 366616646.

It is an arithmetic number, because the mean of its divisors is an integer number (18877733072856).

Almost surely, 2^{220202122010021} is an apocalyptic number.

It is an amenable number.

220202122010021 is a deficient number, since it is larger than the sum of its proper divisors (6330674864251).

220202122010021 is an equidigital number, since it uses as much as digits as its factorization.

220202122010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732632380 (or 732632327 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220202122010021 its reverse (120010221202022), we get a palindrome (340212343212043).

The spelling of 220202122010021 in words is "two hundred twenty trillion, two hundred two billion, one hundred twenty-two million, ten thousand, twenty-one".