1212022303231 has 4 divisors (see below), whose sum is σ = 1241583822864. Its totient is φ = 1182460783600.

The previous prime is 1212022303211. The next prime is 1212022303267. The reversal of 1212022303231 is 1323032202121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1212022303231 - 2¹⁵ = 1212022270463 is a prime.

It is a super-2 number, since 2×1212022303231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212022303201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14780759755 + ... + 14780759836.

It is an arithmetic number, because the mean of its divisors is an integer number (310395955716).

Almost surely, 2^{1212022303231} is an apocalyptic number.

1212022303231 is a deficient number, since it is larger than the sum of its proper divisors (29561519633).

1212022303231 is an equidigital number, since it uses as much as digits as its factorization.

1212022303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29561519632.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1212022303231 its reverse (1323032202121), we get a palindrome (2535054505352).

The spelling of 1212022303231 in words is "one trillion, two hundred twelve billion, twenty-two million, three hundred three thousand, two hundred thirty-one".