2122255464 has 144 divisors (see below), whose sum is σ = 6515100000. Its totient is φ = 574330176.

The previous prime is 2122255433. The next prime is 2122255493. The reversal of 2122255464 is 4645522212.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 422037 + ... + 427035.

It is an arithmetic number, because the mean of its divisors is an integer number (45243750).

Almost surely, 2^2122255464 is an apocalyptic number.

2122255464 is a gapful number since it is divisible by the number (24) 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 2122255464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3257550000).

2122255464 is an abundant number, since it is smaller than the sum of its proper divisors (4392844536).

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

2122255464 is a wasteful number, since it uses less digits than its factorization.

2122255464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060 (or 5030 counting only the distinct ones).

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

The square root of 2122255464 is about 46067.9439957982. The cubic root of 2122255464 is about 1285.0870686460.

Adding to 2122255464 its reverse (4645522212), we get a palindrome (6767777676).

The spelling of 2122255464 in words is "two billion, one hundred twenty-two million, two hundred fifty-five thousand, four hundred sixty-four".