121100221122 has 8 divisors (see below), whose sum is σ = 242200442256. Its totient is φ = 40366740372.

The previous prime is 121100221091. The next prime is 121100221141. The reversal of 121100221122 is 221122001121.

It is a sphenic number, since it is the product of 3 distinct primes.

121100221122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10091685088 + ... + 10091685099.

It is an arithmetic number, because the mean of its divisors is an integer number (30275055282).

Almost surely, 2^121100221122 is an apocalyptic number.

121100221122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121100221122 is a wasteful number, since it uses less digits than its factorization.

121100221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20183370192.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121100221122 its reverse (221122001121), we get a palindrome (342222222243).

The spelling of 121100221122 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-one thousand, one hundred twenty-two".