133422012 has 24 divisors (see below), whose sum is σ = 345909200. Its totient is φ = 44473968.

The previous prime is 133421999. The next prime is 133422017. The reversal of 133422012 is 210224331.

It is a super-2 number, since 2×133422012² = 35602866572256288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133422017) 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, 617587 + ... + 617802.

Almost surely, 2^133422012 is an apocalyptic number.

133422012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133422012 is an abundant number, since it is smaller than the sum of its proper divisors (212487188).

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

133422012 is a wasteful number, since it uses less digits than its factorization.

133422012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235402 (or 1235394 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 133422012 is about 11550.8446444405. The cubic root of 133422012 is about 510.9861886604.

Adding to 133422012 its reverse (210224331), we get a palindrome (343646343).

The spelling of 133422012 in words is "one hundred thirty-three million, four hundred twenty-two thousand, twelve".