212022794740 has 96 divisors (see below), whose sum is σ = 489888000000. Its totient is φ = 76722003072.

The previous prime is 212022794723. The next prime is 212022794747. The reversal of 212022794740 is 47497220212.

212022794740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212022794693 and 212022794702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022794747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5215011 + ... + 5255509.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000000).

Almost surely, 2^212022794740 is an apocalyptic number.

212022794740 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 212022794740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244944000000).

212022794740 is an abundant number, since it is smaller than the sum of its proper divisors (277865205260).

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

212022794740 is a wasteful number, since it uses less digits than its factorization.

212022794740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149 (or 41147 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 212022794740 in words is "two hundred twelve billion, twenty-two million, seven hundred ninety-four thousand, seven hundred forty".