1212122122122 has 32 divisors (see below), whose sum is σ = 2447332038144. Its totient is φ = 400208166000.

The previous prime is 1212122122027. The next prime is 1212122122163. The reversal of 1212122122122 is 2212212212121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613404 + ... + 2242167.

It is an arithmetic number, because the mean of its divisors is an integer number (76479126192).

Almost surely, 2^{1212122122122} is an apocalyptic number.

1212122122122 is an abundant number, since it is smaller than the sum of its proper divisors (1235209916022).

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

1212122122122 is a wasteful number, since it uses less digits than its factorization.

1212122122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856074.

The product of its digits is 256, while the sum is 21.

Adding to 1212122122122 its reverse (2212212212121), we get a palindrome (3424334334243).

The spelling of 1212122122122 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".