20002212220 has 24 divisors (see below), whose sum is σ = 42017837904. Its totient is φ = 7998372096.

The previous prime is 20002212203. The next prime is 20002212277. The reversal of 20002212220 is 2221220002.

It is a self number, because there is not a number n which added to its sum of digits gives 20002212220.

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, 91102 + ... + 219781.

It is an arithmetic number, because the mean of its divisors is an integer number (1750743246).

Almost surely, 2^20002212220 is an apocalyptic number.

20002212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002212220 is an abundant number, since it is smaller than the sum of its proper divisors (22015625684).

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

20002212220 is a wasteful number, since it uses less digits than its factorization.

20002212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314109 (or 314107 counting only the distinct ones).

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

Adding to 20002212220 its reverse (2221220002), we get a palindrome (22223432222).

The spelling of 20002212220 in words is "twenty billion, two million, two hundred twelve thousand, two hundred twenty".