20211222330100 has 36 divisors (see below), whose sum is σ = 43858686443404. Its totient is φ = 8084427367680.

The previous prime is 20211222330067. The next prime is 20211222330113. The reversal of 20211222330100 is 103322211202.

It can be written as a sum of positive squares in 6 ways, for example, as 137578679056 + 20073643651044 = 370916^2 + 4480362^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13800232 + ... + 15194368.

Almost surely, 2^{20211222330100} is an apocalyptic number.

20211222330100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211222330100 is an abundant number, since it is smaller than the sum of its proper divisors (23647464113304).

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

20211222330100 is a wasteful number, since it uses less digits than its factorization.

20211222330100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539124 (or 1539117 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20211222330100 its reverse (103322211202), we get a palindrome (20314544541302).

The spelling of 20211222330100 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, three hundred thirty thousand, one hundred".