122010010021 has 8 divisors (see below), whose sum is σ = 130638611160. Its totient is φ = 113542691328.

The previous prime is 122010010019. The next prime is 122010010049. The reversal of 122010010021 is 120010010221.

It can be written as a sum of positive squares in 4 ways, for example, as 48723940225 + 73286069796 = 220735^2 + 270714^2 .

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 122010010021 - 2¹ = 122010010019 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 (122010010921) 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, 40319046 + ... + 40322071.

It is an arithmetic number, because the mean of its divisors is an integer number (16329826395).

Almost surely, 2^122010010021 is an apocalyptic number.

It is an amenable number.

122010010021 is a deficient number, since it is larger than the sum of its proper divisors (8628601139).

122010010021 is an equidigital number, since it uses as much as digits as its factorization.

122010010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80641223.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122010010021 its reverse (120010010221), we get a palindrome (242020020242).

The spelling of 122010010021 in words is "one hundred twenty-two billion, ten million, ten thousand, twenty-one".