20120202220 has 24 divisors (see below), whose sum is σ = 42372134784. Its totient is φ = 8025278976.

The previous prime is 20120202187. The next prime is 20120202293. The reversal of 20120202220 is 2220202102.

It is a super-3 number, since 3×20120202220³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20120202220.

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, 1417884 + ... + 1432003.

It is an arithmetic number, because the mean of its divisors is an integer number (1765505616).

Almost surely, 2^20120202220 is an apocalyptic number.

20120202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120202220 is an abundant number, since it is smaller than the sum of its proper divisors (22251932564).

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

20120202220 is a wasteful number, since it uses less digits than its factorization.

20120202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850249 (or 2850247 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20120202220 its reverse (2220202102), we get a palindrome (22340404322).

The spelling of 20120202220 in words is "twenty billion, one hundred twenty million, two hundred two thousand, two hundred twenty".