2122221122000 has 160 divisors (see below), whose sum is σ = 5879246989824. Its totient is φ = 725802240000.

The previous prime is 2122221121997. The next prime is 2122221122011. The reversal of 2122221122000 is 2211222212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122221122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5424989 + ... + 5803011.

Almost surely, 2^{2122221122000} is an apocalyptic number.

2122221122000 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 2122221122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2939623494912).

2122221122000 is an abundant number, since it is smaller than the sum of its proper divisors (3757025867824).

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

2122221122000 is a wasteful number, since it uses less digits than its factorization.

2122221122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378454 (or 378438 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2122221122000 its reverse (2211222212), we get a palindrome (2124432344212).

The spelling of 2122221122000 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand".