1122222212212 has 48 divisors (see below), whose sum is σ = 2021946195024. Its totient is φ = 544752000000.

The previous prime is 1122222212143. The next prime is 1122222212249. The reversal of 1122222212212 is 2122122222211.

It can be written as a sum of positive squares in 8 ways, for example, as 24412812516 + 1097809399696 = 156246^2 + 1047764^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38548462 + ... + 38577562.

It is an arithmetic number, because the mean of its divisors is an integer number (42123879063).

Almost surely, 2^{1122222212212} is an apocalyptic number.

It is an amenable number.

1122222212212 is a deficient number, since it is larger than the sum of its proper divisors (899723982812).

1122222212212 is a wasteful number, since it uses less digits than its factorization.

1122222212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31060 (or 31058 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

Adding to 1122222212212 its reverse (2122122222211), we get a palindrome (3244344434423).

Subtracting 1122222212212 from its reverse (2122122222211), we obtain a palindrome (999900009999).

The spelling of 1122222212212 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twelve".