20100202220 has 192 divisors, whose sum is σ = 52757913600. Its totient is φ = 6277201920.

The previous prime is 20100202211. The next prime is 20100202303. The reversal of 20100202220 is 2220200102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14264876 + ... + 14266284.

It is an arithmetic number, because the mean of its divisors is an integer number (274780800).

Almost surely, 2^20100202220 is an apocalyptic number.

20100202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20100202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26378956800).

20100202220 is an abundant number, since it is smaller than the sum of its proper divisors (32657711380).

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

20100202220 is a wasteful number, since it uses less digits than its factorization.

20100202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20100202220 its reverse (2220200102), we get a palindrome (22320402322).

The spelling of 20100202220 in words is "twenty billion, one hundred million, two hundred two thousand, two hundred twenty".