220222402420 has 12 divisors (see below), whose sum is σ = 462467045124. Its totient is φ = 88088960960.

The previous prime is 220222402349. The next prime is 220222402423. The reversal of 220222402420 is 24204222022.

It can be written as a sum of positive squares in 2 ways, for example, as 68077159056 + 152145243364 = 260916^2 + 390058^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220222402391 and 220222402400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222402423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5505560041 + ... + 5505560080.

It is an arithmetic number, because the mean of its divisors is an integer number (38538920427).

Almost surely, 2^220222402420 is an apocalyptic number.

220222402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220222402420 is an abundant number, since it is smaller than the sum of its proper divisors (242244642704).

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

220222402420 is a wasteful number, since it uses less digits than its factorization.

220222402420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011120130 (or 11011120128 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 220222402420 its reverse (24204222022), we get a palindrome (244426624442).

The spelling of 220222402420 in words is "two hundred twenty billion, two hundred twenty-two million, four hundred two thousand, four hundred twenty".