126221903433 has 12 divisors (see below), whose sum is σ = 193045264308. Its totient is φ = 79198056960.

The previous prime is 126221903407. The next prime is 126221903443. The reversal of 126221903433 is 334309122621.

126221903433 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 219 + 0 + 3 + 433 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87455049984 + 38766853449 = 295728^2 + 196893^2 .

It is not a de Polignac number, because 126221903433 - 2¹² = 126221899337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126221903443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412489728 + ... + 412490033.

It is an arithmetic number, because the mean of its divisors is an integer number (16087105359).

Almost surely, 2^126221903433 is an apocalyptic number.

It is an amenable number.

126221903433 is a deficient number, since it is larger than the sum of its proper divisors (66823360875).

126221903433 is a wasteful number, since it uses less digits than its factorization.

126221903433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824979784 (or 824979781 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 126221903433 in words is "one hundred twenty-six billion, two hundred twenty-one million, nine hundred three thousand, four hundred thirty-three".