20211222211120 has 40 divisors (see below), whose sum is σ = 47008186038000. Its totient is φ = 8081547912960.

The previous prime is 20211222211097. The next prime is 20211222211133. The reversal of 20211222211120 is 2111222211202.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45731386 + ... + 46171225.

It is an arithmetic number, because the mean of its divisors is an integer number (1175204650950).

Almost surely, 2^{20211222211120} is an apocalyptic number.

20211222211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211222211120 is an abundant number, since it is smaller than the sum of its proper divisors (26796963826880).

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

20211222211120 is a wasteful number, since it uses less digits than its factorization.

20211222211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91905373 (or 91905367 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20211222211120 its reverse (2111222211202), we get a palindrome (22322444422322).

The spelling of 20211222211120 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty".