2115222521250 has 160 divisors (see below), whose sum is σ = 5446479018816. Its totient is φ = 547071840000.

The previous prime is 2115222521233. The next prime is 2115222521263. The reversal of 2115222521250 is 521252225112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 43959705 + ... + 44007795.

Almost surely, 2^{2115222521250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115222521250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723239509408).

2115222521250 is an abundant number, since it is smaller than the sum of its proper divisors (3331256497566).

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

2115222521250 is a wasteful number, since it uses less digits than its factorization.

2115222521250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48470 (or 48455 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 2115222521250 its reverse (521252225112), we get a palindrome (2636474746362).

The spelling of 2115222521250 in words is "two trillion, one hundred fifteen billion, two hundred twenty-two million, five hundred twenty-one thousand, two hundred fifty".