1224022131 has 16 divisors (see below), whose sum is σ = 1831324320. Its totient is φ = 807933600.

The previous prime is 1224022127. The next prime is 1224022139. The reversal of 1224022131 is 1312204221.

It is a happy number.

It is not a de Polignac number, because 1224022131 - 2² = 1224022127 is a prime.

It is a super-2 number, since 2×1224022131² = 2996460354355562322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1224022139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221700 + ... + 227153.

It is an arithmetic number, because the mean of its divisors is an integer number (114457770).

Almost surely, 2^1224022131 is an apocalyptic number.

1224022131 is a deficient number, since it is larger than the sum of its proper divisors (607302189).

1224022131 is a wasteful number, since it uses less digits than its factorization.

1224022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448963 (or 448957 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1224022131 is about 34986.0276539078. The cubic root of 1224022131 is about 1069.7026952264.

Adding to 1224022131 its reverse (1312204221), we get a palindrome (2536226352).

The spelling of 1224022131 in words is "one billion, two hundred twenty-four million, twenty-two thousand, one hundred thirty-one".