121112112210122 has 16 divisors (see below), whose sum is σ = 198432118174752. Its totient is φ = 54981887364720.

The previous prime is 121112112210017. The next prime is 121112112210169. The reversal of 121112112210122 is 221012211211121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121112112210094 and 121112112210103.

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, 3453618608 + ... + 3453653675.

It is an arithmetic number, because the mean of its divisors is an integer number (12402007385922).

Almost surely, 2^{121112112210122} is an apocalyptic number.

121112112210122 is a deficient number, since it is larger than the sum of its proper divisors (77320005964630).

121112112210122 is a wasteful number, since it uses less digits than its factorization.

121112112210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907273093.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121112112210122 its reverse (221012211211121), we get a palindrome (342124323421243).

Subtracting 121112112210122 from its reverse (221012211211121), we obtain a palindrome (99900099000999).

The spelling of 121112112210122 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-two".