120212121342 has 16 divisors (see below), whose sum is σ = 240450376320. Its totient is φ = 40066351512.

The previous prime is 120212121331. The next prime is 120212121353. The reversal of 120212121342 is 243121212021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120212121331) and next prime (120212121353).

It is a congruent number.

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, 1028848 + ... + 1139715.

It is an arithmetic number, because the mean of its divisors is an integer number (15028148520).

Almost surely, 2^120212121342 is an apocalyptic number.

120212121342 is an abundant number, since it is smaller than the sum of its proper divisors (120238254978).

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

120212121342 is a wasteful number, since it uses less digits than its factorization.

120212121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177807.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 120212121342 its reverse (243121212021), we get a palindrome (363333333363).

The spelling of 120212121342 in words is "one hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, three hundred forty-two".