1522212444 has 36 divisors (see below), whose sum is σ = 3859981944. Its totient is φ = 505799712.

The previous prime is 1522212421. The next prime is 1522212451. The reversal of 1522212444 is 4442122251.

It is a happy number.

1522212444 is a `hidden beast` number, since 1 + 5 + 2 + 2 + 212 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55282 + ... + 78105.

Almost surely, 2^1522212444 is an apocalyptic number.

It is an amenable number.

1522212444 is an abundant number, since it is smaller than the sum of its proper divisors (2337769500).

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

1522212444 is a wasteful number, since it uses less digits than its factorization.

1522212444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133714 (or 133709 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 1522212444 is about 39015.5410573787. The cubic root of 1522212444 is about 1150.3370011710.

Adding to 1522212444 its reverse (4442122251), we get a palindrome (5964334695).

The spelling of 1522212444 in words is "one billion, five hundred twenty-two million, two hundred twelve thousand, four hundred forty-four".