231442786129222 has 8 divisors (see below), whose sum is σ = 347358887095536. Its totient is φ = 115656490430712.

The previous prime is 231442786129207. The next prime is 231442786129241. The reversal of 231442786129222 is 222921687244132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32451312493 + ... + 32451319624.

It is an arithmetic number, because the mean of its divisors is an integer number (43419860886942).

Almost surely, 2^{231442786129222} is an apocalyptic number.

231442786129222 is a deficient number, since it is larger than the sum of its proper divisors (115916100966314).

231442786129222 is a wasteful number, since it uses less digits than its factorization.

231442786129222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64902633902.

The product of its digits is 9289728, while the sum is 55.

The spelling of 231442786129222 in words is "two hundred thirty-one trillion, four hundred forty-two billion, seven hundred eighty-six million, one hundred twenty-nine thousand, two hundred twenty-two".