2122189977600 has 1152 divisors, whose sum is σ = 9719152934400. Its totient is φ = 440952422400.

The previous prime is 2122189977587. The next prime is 2122189977623. The reversal of 2122189977600 is 67799812212.

2122189977600 is a `hidden beast` number, since 2 + 1 + 2 + 21 + 8 + 9 + 9 + 7 + 7 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 106434832 + ... + 106454768.

It is an arithmetic number, because the mean of its divisors is an integer number (8436764700).

Almost surely, 2^{2122189977600} is an apocalyptic number.

2122189977600 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 2122189977600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4859576467200).

2122189977600 is an abundant number, since it is smaller than the sum of its proper divisors (7596962956800).

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

2122189977600 is a wasteful number, since it uses less digits than its factorization.

2122189977600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19996 (or 19965 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 2122189977600 in words is "two trillion, one hundred twenty-two billion, one hundred eighty-nine million, nine hundred seventy-seven thousand, six hundred".