1212422031 has 48 divisors (see below), whose sum is σ = 1936179648. Its totient is φ = 727833600.

The previous prime is 1212421999. The next prime is 1212422063. The reversal of 1212422031 is 1302242121.

It is a happy number.

1212422031 is a `hidden beast` number, since 1 + 212 + 422 + 0 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (1212421999) and next prime (1212422063).

It is not a de Polignac number, because 1212422031 - 2⁵ = 1212421999 is a prime.

It is a super-2 number, since 2×1212422031² = 2939934362508329922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212421995 and 1212422013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212422231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 343566 + ... + 347076.

It is an arithmetic number, because the mean of its divisors is an integer number (40337076).

Almost surely, 2^1212422031 is an apocalyptic number.

1212422031 is a deficient number, since it is larger than the sum of its proper divisors (723757617).

1212422031 is a wasteful number, since it uses less digits than its factorization.

1212422031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632 (or 3629 counting only the distinct ones).

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

The square root of 1212422031 is about 34819.8511053680. The cubic root of 1212422031 is about 1066.3127605972.

Adding to 1212422031 its reverse (1302242121), we get a palindrome (2514664152).

The spelling of 1212422031 in words is "one billion, two hundred twelve million, four hundred twenty-two thousand, thirty-one".