220420345310 has 64 divisors (see below), whose sum is σ = 447769218240. Its totient is φ = 77417118720.

The previous prime is 220420345261. The next prime is 220420345337. The reversal of 220420345310 is 13543024022.

It is a super-2 number, since 2×220420345310² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220420345310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359936 + ... + 755244.

It is an arithmetic number, because the mean of its divisors is an integer number (6996394035).

Almost surely, 2^220420345310 is an apocalyptic number.

220420345310 is an abundant number, since it is smaller than the sum of its proper divisors (227348872930).

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

220420345310 is a wasteful number, since it uses less digits than its factorization.

220420345310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395501.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 220420345310 its reverse (13543024022), we get a palindrome (233963369332).

The spelling of 220420345310 in words is "two hundred twenty billion, four hundred twenty million, three hundred forty-five thousand, three hundred ten".