126432221105 has 16 divisors (see below), whose sum is σ = 151876529280. Its totient is φ = 101040605952.

The previous prime is 126432221087. The next prime is 126432221131. The reversal of 126432221105 is 501122234621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126432221105 is a prime.

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, 33994436 + ... + 33998154.

It is an arithmetic number, because the mean of its divisors is an integer number (9492283080).

Almost surely, 2^126432221105 is an apocalyptic number.

It is an amenable number.

126432221105 is a deficient number, since it is larger than the sum of its proper divisors (25444308175).

126432221105 is a wasteful number, since it uses less digits than its factorization.

126432221105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8968.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 126432221105 its reverse (501122234621), we get a palindrome (627554455726).

The spelling of 126432221105 in words is "one hundred twenty-six billion, four hundred thirty-two million, two hundred twenty-one thousand, one hundred five".