1222212031 has 8 divisors (see below), whose sum is σ = 1293008000. Its totient is φ = 1152063000.

The previous prime is 1222212023. The next prime is 1222212077. The reversal of 1222212031 is 1302122221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222212031 - 2³ = 1222212023 is a prime.

It is a super-2 number, since 2×1222212031² = 2987604497442289922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222211996 and 1222212014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157845 + ... + 165406.

It is an arithmetic number, because the mean of its divisors is an integer number (161626000).

Almost surely, 2^1222212031 is an apocalyptic number.

1222212031 is a deficient number, since it is larger than the sum of its proper divisors (70795969).

1222212031 is a wasteful number, since it uses less digits than its factorization.

1222212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323469.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1222212031 is about 34960.1491844643. The cubic root of 1222212031 is about 1069.1751382908.

Adding to 1222212031 its reverse (1302122221), we get a palindrome (2524334252).

The spelling of 1222212031 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, thirty-one".