120201223142 has 64 divisors (see below), whose sum is σ = 243089054208. Its totient is φ = 43049664000.

The previous prime is 120201223091. The next prime is 120201223147. The reversal of 120201223142 is 241322102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201223147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357917 + ... + 607047.

It is an arithmetic number, because the mean of its divisors is an integer number (3798266472).

Almost surely, 2^120201223142 is an apocalyptic number.

120201223142 is an abundant number, since it is smaller than the sum of its proper divisors (122887831066).

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

120201223142 is a wasteful number, since it uses less digits than its factorization.

120201223142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249405.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 120201223142 its reverse (241322102021), we get a palindrome (361523325163).

It can be divided in two parts, 120201 and 223142, that added together give a palindrome (343343).

The spelling of 120201223142 in words is "one hundred twenty billion, two hundred one million, two hundred twenty-three thousand, one hundred forty-two".