121432242234122 has 4 divisors (see below), whose sum is σ = 182148363351186. Its totient is φ = 60716121117060.

The previous prime is 121432242234077. The next prime is 121432242234131. The reversal of 121432242234122 is 221432242234121.

It is a happy number.

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., 117674960100481 + 3757282133641 = 10847809^2 + 1938371^2 .

It is a super-2 number, since 2×121432242234122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30358060558529 + ... + 30358060558532.

Almost surely, 2^{121432242234122} is an apocalyptic number.

121432242234122 is a deficient number, since it is larger than the sum of its proper divisors (60716121117064).

121432242234122 is an equidigital number, since it uses as much as digits as its factorization.

121432242234122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60716121117063.

The product of its digits is 73728, while the sum is 35.

Adding to 121432242234122 its reverse (221432242234121), we get a palindrome (342864484468243).

Subtracting 121432242234122 from its reverse (221432242234121), we obtain a palindrome (99999999999999).

The spelling of 121432242234122 in words is "one hundred twenty-one trillion, four hundred thirty-two billion, two hundred forty-two million, two hundred thirty-four thousand, one hundred twenty-two".