1222212022123 has 8 divisors (see below), whose sum is σ = 1271767791168. Its totient is φ = 1173637555584.

The previous prime is 1222212022063. The next prime is 1222212022211. The reversal of 1222212022123 is 3212202122221.

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 a de Polignac number, because none of the positive numbers 2^k-1222212022123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222212022094 and 1222212022103.

It is not an unprimeable number, because it can be changed into a prime (1222212022723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245323086 + ... + 245328067.

It is an arithmetic number, because the mean of its divisors is an integer number (158970973896).

Almost surely, 2^{1222212022123} is an apocalyptic number.

1222212022123 is a deficient number, since it is larger than the sum of its proper divisors (49555769045).

1222212022123 is an equidigital number, since it uses as much as digits as its factorization.

1222212022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490651253.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1222212022123 its reverse (3212202122221), we get a palindrome (4434414144344).

The spelling of 1222212022123 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, twenty-two thousand, one hundred twenty-three".