242126156122 has 32 divisors (see below), whose sum is σ = 386181378000. Its totient is φ = 113460092928.

The previous prime is 242126156101. The next prime is 242126156137. The reversal of 242126156122 is 221651621242.

It can be written as a sum of positive squares in 8 ways, for example, as 131209848441 + 110916307681 = 362229^2 + 333041^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 10726504 + ... + 10749052.

Almost surely, 2^242126156122 is an apocalyptic number.

242126156122 is a deficient number, since it is larger than the sum of its proper divisors (144055221878).

242126156122 is a wasteful number, since it uses less digits than its factorization.

242126156122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23890.

The product of its digits is 23040, while the sum is 34.

Adding to 242126156122 its reverse (221651621242), we get a palindrome (463777777364).

The spelling of 242126156122 in words is "two hundred forty-two billion, one hundred twenty-six million, one hundred fifty-six thousand, one hundred twenty-two".