121097106 has 56 divisors (see below), whose sum is σ = 293339340. Its totient is φ = 37254816.

The previous prime is 121097099. The next prime is 121097111. The reversal of 121097106 is 601790121.

It can be written as a sum of positive squares in 2 ways, for example, as 86769225 + 34327881 = 9315^2 + 5859^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 121097106.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 15760 + ... + 22148.

Almost surely, 2^121097106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121097106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146669670).

121097106 is an abundant number, since it is smaller than the sum of its proper divisors (172242234).

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

121097106 is an equidigital number, since it uses as much as digits as its factorization.

121097106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422 (or 6407 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 121097106 is about 11004.4130238736. The cubic root of 121097106 is about 494.7410215538.

The spelling of 121097106 in words is "one hundred twenty-one million, ninety-seven thousand, one hundred six".