2225931909720 has 256 divisors, whose sum is σ = 7168013222400. Its totient is φ = 551014932480.

The previous prime is 2225931909713. The next prime is 2225931909767. The reversal of 2225931909720 is 279091395222.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49963855 + ... + 50008385.

It is an arithmetic number, because the mean of its divisors is an integer number (28000051650).

Almost surely, 2^{2225931909720} is an apocalyptic number.

2225931909720 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 2225931909720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3584006611200).

2225931909720 is an abundant number, since it is smaller than the sum of its proper divisors (4942081312680).

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

2225931909720 is a wasteful number, since it uses less digits than its factorization.

2225931909720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44898 (or 44894 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 2225931909720 in words is "two trillion, two hundred twenty-five billion, nine hundred thirty-one million, nine hundred nine thousand, seven hundred twenty".