121100122 has 16 divisors (see below), whose sum is σ = 213407712. Its totient is φ = 50811120.

The previous prime is 121100117. The next prime is 121100131. The reversal of 121100122 is 221001121.

It is a junction number, because it is equal to n+sod(n) for n = 121100099 and 121100108.

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, 211428 + ... + 211999.

It is an arithmetic number, because the mean of its divisors is an integer number (13337982).

Almost surely, 2^121100122 is an apocalyptic number.

121100122 is a deficient number, since it is larger than the sum of its proper divisors (92307590).

121100122 is a wasteful number, since it uses less digits than its factorization.

121100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423453.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 121100122 is about 11004.5500589529. The cubic root of 121100122 is about 494.7451287990.

Adding to 121100122 its reverse (221001121), we get a palindrome (342101243).

Subtracting 121100122 from its reverse (221001121), we obtain a palindrome (99900999).

The spelling of 121100122 in words is "one hundred twenty-one million, one hundred thousand, one hundred twenty-two".