20312222221302 has 32 divisors (see below), whose sum is σ = 44756363649024. Its totient is φ = 6094276092000.

The previous prime is 20312222221297. The next prime is 20312222221307.

20312222221302 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (20312222221297) and next prime (20312222221307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312222221307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1523562358 + ... + 1523575689.

It is an arithmetic number, because the mean of its divisors is an integer number (1398636364032).

Almost surely, 2^{20312222221302} is an apocalyptic number.

20312222221302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20312222221302 is an abundant number, since it is smaller than the sum of its proper divisors (24444141427722).

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

20312222221302 is a wasteful number, since it uses less digits than its factorization.

20312222221302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047138164.

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 2031222 and 2221302, that added together give a palindrome (4252524).

The spelling of 20312222221302 in words is "twenty trillion, three hundred twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred two".