1210002122122 has 16 divisors (see below), whose sum is σ = 1845199300032. Its totient is φ = 594966144960.

The previous prime is 1210002122117. The next prime is 1210002122159. The reversal of 1210002122122 is 2212212000121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210002122096 and 1210002122105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7534254 + ... + 7693177.

It is an arithmetic number, because the mean of its divisors is an integer number (115324956252).

Almost surely, 2^{1210002122122} is an apocalyptic number.

1210002122122 is a deficient number, since it is larger than the sum of its proper divisors (635197177910).

1210002122122 is a wasteful number, since it uses less digits than its factorization.

1210002122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15228093.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210002122122 its reverse (2212212000121), we get a palindrome (3422214122243).

The spelling of 1210002122122 in words is "one trillion, two hundred ten billion, two million, one hundred twenty-two thousand, one hundred twenty-two".