211122220120000 has 140 divisors (see below), whose sum is σ = 598302276423280. Its totient is φ = 72384761088000.

The previous prime is 211122220119949. The next prime is 211122220120033. The reversal of 211122220120000 is 21022221112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (140).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 376723965 + ... + 377283964.

Almost surely, 2^{211122220120000} is an apocalyptic number.

211122220120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211122220120000 is an abundant number, since it is smaller than the sum of its proper divisors (387180056303280).

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

211122220120000 is an frugal number, since it uses more digits than its factorization.

211122220120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754007968 (or 754007943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211122220120000 its reverse (21022221112), we get a palindrome (211143242341112).

The spelling of 211122220120000 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty thousand".