20220220220 has 48 divisors (see below), whose sum is σ = 43349287968. Its totient is φ = 7920341760.

The previous prime is 20220220219. The next prime is 20220220259. The reversal of 20220220220 is 2202202202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20220220195 and 20220220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240434 + ... + 313446.

It is an arithmetic number, because the mean of its divisors is an integer number (903110166).

Almost surely, 2^20220220220 is an apocalyptic number.

20220220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220220220 is an abundant number, since it is smaller than the sum of its proper divisors (23129067748).

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

20220220220 is a wasteful number, since it uses less digits than its factorization.

20220220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73310 (or 73308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20220220220 its reverse (2202202202), we get a palindrome (22422422422).

The spelling of 20220220220 in words is "twenty billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty".