1422521212 has 24 divisors (see below), whose sum is σ = 2862505856. Its totient is φ = 605909808.

The previous prime is 1422521167. The next prime is 1422521213. The reversal of 1422521212 is 2121252241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422521213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151278 + ... + 160405.

Almost surely, 2^1422521212 is an apocalyptic number.

It is an amenable number.

1422521212 is an abundant number, since it is smaller than the sum of its proper divisors (1439984644).

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

1422521212 is a wasteful number, since it uses less digits than its factorization.

1422521212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311857 (or 311855 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 1422521212 is about 37716.3255368282. The cubic root of 1422521212 is about 1124.6556870927.

Adding to 1422521212 its reverse (2121252241), we get a palindrome (3543773453).

The spelling of 1422521212 in words is "one billion, four hundred twenty-two million, five hundred twenty-one thousand, two hundred twelve".