222623720013660 has 384 divisors, whose sum is σ = 762115035838464. Its totient is φ = 47396496998400.

The previous prime is 222623720013649. The next prime is 222623720013731. The reversal of 222623720013660 is 66310027326222.

It is a super-2 number, since 2×222623720013660² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1617448204 + ... + 1617585836.

It is an arithmetic number, because the mean of its divisors is an integer number (1984674572496).

Almost surely, 2^{222623720013660} is an apocalyptic number.

222623720013660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222623720013660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381057517919232).

222623720013660 is an abundant number, since it is smaller than the sum of its proper divisors (539491315824804).

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

222623720013660 is a wasteful number, since it uses less digits than its factorization.

222623720013660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140013 (or 140011 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

Adding to 222623720013660 its reverse (66310027326222), we get a palindrome (288933747339882).

The spelling of 222623720013660 in words is "two hundred twenty-two trillion, six hundred twenty-three billion, seven hundred twenty million, thirteen thousand, six hundred sixty".