20122220000 has 120 divisors (see below), whose sum is σ = 52416546336. Its totient is φ = 7575296000.

The previous prime is 20122219993. The next prime is 20122220003. The reversal of 20122220000 is 2222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122220003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 310409 + ... + 369591.

Almost surely, 2^20122220000 is an apocalyptic number.

20122220000 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 20122220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26208273168).

20122220000 is an abundant number, since it is smaller than the sum of its proper divisors (32294326336).

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

20122220000 is an equidigital number, since it uses as much as digits as its factorization.

20122220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59230 (or 59207 counting only the distinct ones).

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

Adding to 20122220000 its reverse (2222102), we get a palindrome (20124442102).

The spelling of 20122220000 in words is "twenty billion, one hundred twenty-two million, two hundred twenty thousand".