20122245200 has 60 divisors (see below), whose sum is σ = 48359949408. Its totient is φ = 8046192000.

The previous prime is 20122245197. The next prime is 20122245223. The reversal of 20122245200 is 254222102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1533869 + ... + 1546931.

Almost surely, 2^20122245200 is an apocalyptic number.

20122245200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122245200 is an abundant number, since it is smaller than the sum of its proper divisors (28237704208).

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

20122245200 is a wasteful number, since it uses less digits than its factorization.

20122245200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16932 (or 16921 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 20122245200 its reverse (254222102), we get a palindrome (20376467302).

The spelling of 20122245200 in words is "twenty billion, one hundred twenty-two million, two hundred forty-five thousand, two hundred".