121400120122 has 4 divisors (see below), whose sum is σ = 182100180186. Its totient is φ = 60700060060.

The previous prime is 121400119969. The next prime is 121400120147. The reversal of 121400120122 is 221021004121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 85380255601 + 36019864521 = 292199^2 + 189789^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121400120096 and 121400120105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30350030029 + ... + 30350030032.

Almost surely, 2^121400120122 is an apocalyptic number.

121400120122 is a deficient number, since it is larger than the sum of its proper divisors (60700060064).

121400120122 is an equidigital number, since it uses as much as digits as its factorization.

121400120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60700060063.

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

Adding to 121400120122 its reverse (221021004121), we get a palindrome (342421124243).

The spelling of 121400120122 in words is "one hundred twenty-one billion, four hundred million, one hundred twenty thousand, one hundred twenty-two".