212722230157600 has 144 divisors (see below), whose sum is σ = 546669619030080. Its totient is φ = 80606183961600.

The previous prime is 212722230157499. The next prime is 212722230157639. The reversal of 212722230157600 is 6751032227212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (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 23 ways as a sum of consecutive naturals, for example, 288903514 + ... + 289638886.

It is an arithmetic number, because the mean of its divisors is an integer number (3796316798820).

Almost surely, 2^{212722230157600} is an apocalyptic number.

212722230157600 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 212722230157600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273334809515040).

212722230157600 is an abundant number, since it is smaller than the sum of its proper divisors (333947388872480).

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

212722230157600 is a wasteful number, since it uses less digits than its factorization.

212722230157600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754443 (or 754430 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 212722230157600 in words is "two hundred twelve trillion, seven hundred twenty-two billion, two hundred thirty million, one hundred fifty-seven thousand, six hundred".