122140431221142 has 32 divisors (see below), whose sum is σ = 255075054612480. Its totient is φ = 38916851783040.

The previous prime is 122140431221141. The next prime is 122140431221201. The reversal of 122140431221142 is 241122134041221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122140431221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300638467 + ... + 301044462.

It is an arithmetic number, because the mean of its divisors is an integer number (7971095456640).

Almost surely, 2^{122140431221142} is an apocalyptic number.

122140431221142 is an abundant number, since it is smaller than the sum of its proper divisors (132934623391338).

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

122140431221142 is a wasteful number, since it uses less digits than its factorization.

122140431221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601684428.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 122140431221142 its reverse (241122134041221), we get a palindrome (363262565262363).

The spelling of 122140431221142 in words is "one hundred twenty-two trillion, one hundred forty billion, four hundred thirty-one million, two hundred twenty-one thousand, one hundred forty-two".