12101120142 has 32 divisors (see below), whose sum is σ = 24285774240. Its totient is φ = 4019804160.

The previous prime is 12101120123. The next prime is 12101120173. The reversal of 12101120142 is 24102110121.

It is a super-2 number, since 2×12101120142² (a number of 21 digits) contains 22 as substring.

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, 5304042 + ... + 5306322.

It is an arithmetic number, because the mean of its divisors is an integer number (758930445).

Almost surely, 2^12101120142 is an apocalyptic number.

12101120142 is an abundant number, since it is smaller than the sum of its proper divisors (12184654098).

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

12101120142 is a wasteful number, since it uses less digits than its factorization.

12101120142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12101120142 its reverse (24102110121), we get a palindrome (36203230263).

The spelling of 12101120142 in words is "twelve billion, one hundred one million, one hundred twenty thousand, one hundred forty-two".