2231222200020 has 96 divisors (see below), whose sum is σ = 7572632941440. Its totient is φ = 540902350080.

The previous prime is 2231222200003. The next prime is 2231222200091. The reversal of 2231222200020 is 200022221322.

2231222200020 is a `hidden beast` number, since 223 + 1 + 222 + 200 + 0 + 20 = 666.

It is a super-3 number, since 3×2231222200020³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2231222199966 and 2231222200002.

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 31 ways as a sum of consecutive naturals, for example, 187807377 + ... + 187819256.

It is an arithmetic number, because the mean of its divisors is an integer number (78881593140).

Almost surely, 2^{2231222200020} is an apocalyptic number.

2231222200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231222200020 is an abundant number, since it is smaller than the sum of its proper divisors (5341410741420).

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

2231222200020 is a wasteful number, since it uses less digits than its factorization.

2231222200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375626662 (or 375626654 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 2231222200020 its reverse (200022221322), we get a palindrome (2431244421342).

The spelling of 2231222200020 in words is "two trillion, two hundred thirty-one billion, two hundred twenty-two million, two hundred thousand, twenty".