121202020340142 has 32 divisors (see below), whose sum is σ = 277034494512384. Its totient is φ = 34628985523200.

The previous prime is 121202020340119. The next prime is 121202020340153. The reversal of 121202020340142 is 241043020202121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368717 + ... + 15748487.

It is an arithmetic number, because the mean of its divisors is an integer number (8657327953512).

Almost surely, 2^{121202020340142} is an apocalyptic number.

121202020340142 is an abundant number, since it is smaller than the sum of its proper divisors (155832474172242).

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

121202020340142 is a wasteful number, since it uses less digits than its factorization.

121202020340142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13595464.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121202020340142 its reverse (241043020202121), we get a palindrome (362245040542263).

The spelling of 121202020340142 in words is "one hundred twenty-one trillion, two hundred two billion, twenty million, three hundred forty thousand, one hundred forty-two".