1212322122222 has 32 divisors (see below), whose sum is σ = 2438140483584. Its totient is φ = 401859393600.

The previous prime is 1212322122217. The next prime is 1212322122227. The reversal of 1212322122222 is 2222212232121.

It is an interprime number because it is at equal distance from previous prime (1212322122217) and next prime (1212322122227).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1212322122192 and 1212322122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212322122227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3342322 + ... + 3687242.

It is an arithmetic number, because the mean of its divisors is an integer number (76191890112).

Almost surely, 2^{1212322122222} is an apocalyptic number.

1212322122222 is an abundant number, since it is smaller than the sum of its proper divisors (1225818361362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212322122222 is a wasteful number, since it uses less digits than its factorization.

1212322122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348184.

The product of its digits is 1536, while the sum is 24.

Adding to 1212322122222 its reverse (2222212232121), we get a palindrome (3434534354343).

The spelling of 1212322122222 in words is "one trillion, two hundred twelve billion, three hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-two".