21302010323022 has 128 divisors (see below), whose sum is σ = 53007501496320. Its totient is φ = 5606936893440.

The previous prime is 21302010323017. The next prime is 21302010323029. The reversal of 21302010323022 is 22032301020312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21302010323022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302010323029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71453923 + ... + 71751425.

It is an arithmetic number, because the mean of its divisors is an integer number (414121105440).

Almost surely, 2^{21302010323022} is an apocalyptic number.

21302010323022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21302010323022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26503750748160).

21302010323022 is an abundant number, since it is smaller than the sum of its proper divisors (31705491173298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21302010323022 is a wasteful number, since it uses less digits than its factorization.

21302010323022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302458.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21302010323022 its reverse (22032301020312), we get a palindrome (43334311343334).

The spelling of 21302010323022 in words is "twenty-one trillion, three hundred two billion, ten million, three hundred twenty-three thousand, twenty-two".