622220406420 has 24 divisors (see below), whose sum is σ = 1742217138144. Its totient is φ = 165925441696.

The previous prime is 622220406361. The next prime is 622220406439. The reversal of 622220406420 is 24604022226.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5185169994 + ... + 5185170113.

It is an arithmetic number, because the mean of its divisors is an integer number (72592380756).

Almost surely, 2^622220406420 is an apocalyptic number.

622220406420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

622220406420 is an abundant number, since it is smaller than the sum of its proper divisors (1119996731724).

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

622220406420 is a wasteful number, since it uses less digits than its factorization.

622220406420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370340119 (or 10370340117 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 622220406420 its reverse (24604022226), we get a palindrome (646824428646).

The spelling of 622220406420 in words is "six hundred twenty-two billion, two hundred twenty million, four hundred six thousand, four hundred twenty".