2145222435120 has 160 divisors (see below), whose sum is σ = 6821998816512. Its totient is φ = 557347101696.

The previous prime is 2145222435073. The next prime is 2145222435127. The reversal of 2145222435120 is 215342225412.

It is a super-2 number, since 2×2145222435120² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145222435127) 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, 3835239 + ... + 4358841.

Almost surely, 2^{2145222435120} is an apocalyptic number.

2145222435120 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 2145222435120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3410999408256).

2145222435120 is an abundant number, since it is smaller than the sum of its proper divisors (4676776381392).

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

2145222435120 is a wasteful number, since it uses less digits than its factorization.

2145222435120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524059 (or 524053 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 2145222435120 in words is "two trillion, one hundred forty-five billion, two hundred twenty-two million, four hundred thirty-five thousand, one hundred twenty".