121142134221442 has 16 divisors (see below), whose sum is σ = 184116421702080. Its totient is φ = 59775212374128.

The previous prime is 121142134221439. The next prime is 121142134221457. The reversal of 121142134221442 is 244122431241121.

121142134221442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×121142134221442³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121142134221398 and 121142134221407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304633433 + ... + 1304726284.

It is an arithmetic number, because the mean of its divisors is an integer number (11507276356380).

Almost surely, 2^{121142134221442} is an apocalyptic number.

121142134221442 is a deficient number, since it is larger than the sum of its proper divisors (62974287480638).

121142134221442 is a wasteful number, since it uses less digits than its factorization.

121142134221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609360025.

The product of its digits is 24576, while the sum is 34.

Adding to 121142134221442 its reverse (244122431241121), we get a palindrome (365264565462563).

The spelling of 121142134221442 in words is "one hundred twenty-one trillion, one hundred forty-two billion, one hundred thirty-four million, two hundred twenty-one thousand, four hundred forty-two".