115212201142 has 4 divisors (see below), whose sum is σ = 172818301716. Its totient is φ = 57606100570.

The previous prime is 115212201133. The next prime is 115212201173. The reversal of 115212201142 is 241102212511.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×115212201142² (a number of 23 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 as a sum of consecutive naturals, namely, 28803050284 + ... + 28803050287.

It is an arithmetic number, because the mean of its divisors is an integer number (43204575429).

Almost surely, 2^115212201142 is an apocalyptic number.

115212201142 is a deficient number, since it is larger than the sum of its proper divisors (57606100574).

115212201142 is an equidigital number, since it uses as much as digits as its factorization.

115212201142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57606100573.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 115212201142 its reverse (241102212511), we get a palindrome (356314413653).

The spelling of 115212201142 in words is "one hundred fifteen billion, two hundred twelve million, two hundred one thousand, one hundred forty-two".