212251177320 has 384 divisors, whose sum is σ = 798753312000. Its totient is φ = 44723073024.

The previous prime is 212251177319. The next prime is 212251177331. The reversal of 212251177320 is 23771152212.

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, 80184237 + ... + 80186883.

It is an arithmetic number, because the mean of its divisors is an integer number (2080086750).

Almost surely, 2^212251177320 is an apocalyptic number.

212251177320 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 212251177320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399376656000).

212251177320 is an abundant number, since it is smaller than the sum of its proper divisors (586502134680).

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

212251177320 is a wasteful number, since it uses less digits than its factorization.

212251177320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 212251177320 in words is "two hundred twelve billion, two hundred fifty-one million, one hundred seventy-seven thousand, three hundred twenty".