2351221152 has 48 divisors (see below), whose sum is σ = 7053665472. Its totient is φ = 671777280.

The previous prime is 2351221141. The next prime is 2351221189. The reversal of 2351221152 is 2511221532.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2351221152² = 11056481811224414208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1748749 + ... + 1750092.

It is an arithmetic number, because the mean of its divisors is an integer number (146951364).

Almost surely, 2^2351221152 is an apocalyptic number.

It is an amenable number.

2351221152 is an abundant number, since it is smaller than the sum of its proper divisors (4702444320).

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

2351221152 is a wasteful number, since it uses less digits than its factorization.

2351221152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498861 (or 3498853 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 2351221152 is about 48489.3921595229. The cubic root of 2351221152 is about 1329.7331426083.

Adding to 2351221152 its reverse (2511221532), we get a palindrome (4862442684).

The spelling of 2351221152 in words is "two billion, three hundred fifty-one million, two hundred twenty-one thousand, one hundred fifty-two".