121200311120122 has 16 divisors (see below), whose sum is σ = 199103509795680. Its totient is φ = 54990493180272.

The previous prime is 121200311120117. The next prime is 121200311120129. The reversal of 121200311120122 is 221021113002121.

It is a super-2 number, since 2×121200311120122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121200311120122.

It is not an unprimeable number, because it can be changed into a prime (121200311120129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39504663108 + ... + 39504666175.

It is an arithmetic number, because the mean of its divisors is an integer number (12443969362230).

Almost surely, 2^{121200311120122} is an apocalyptic number.

121200311120122 is a deficient number, since it is larger than the sum of its proper divisors (77903198675558).

121200311120122 is a wasteful number, since it uses less digits than its factorization.

121200311120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79009329357.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121200311120122 its reverse (221021113002121), we get a palindrome (342221424122243).

The spelling of 121200311120122 in words is "one hundred twenty-one trillion, two hundred billion, three hundred eleven million, one hundred twenty thousand, one hundred twenty-two".