1212041422431 has 160 divisors (see below), whose sum is σ = 2163647827968. Its totient is φ = 661623137280.

The previous prime is 1212041422429. The next prime is 1212041422441. The reversal of 1212041422431 is 1342241402121.

1212041422431 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 0 + 414 + 2 + 243 + 1 = 666.

It is not a de Polignac number, because 1212041422431 - 2¹ = 1212041422429 is a prime.

It is a super-2 number, since 2×1212041422431² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1212041422395 and 1212041422404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212041422441) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 550176576 + ... + 550178778.

Almost surely, 2^{1212041422431} is an apocalyptic number.

1212041422431 is a deficient number, since it is larger than the sum of its proper divisors (951606405537).

1212041422431 is a wasteful number, since it uses less digits than its factorization.

1212041422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643 (or 2634 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1212041422431 its reverse (1342241402121), we get a palindrome (2554282824552).

The spelling of 1212041422431 in words is "one trillion, two hundred twelve billion, forty-one million, four hundred twenty-two thousand, four hundred thirty-one".