122203947291 has 16 divisors (see below), whose sum is σ = 163204946976. Its totient is φ = 81336185856.

The previous prime is 122203947289. The next prime is 122203947301. The reversal of 122203947291 is 192749302221.

It is not a de Polignac number, because 122203947291 - 2¹ = 122203947289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122203947191) 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 15 ways as a sum of consecutive naturals, for example, 14625771 + ... + 14634123.

It is an arithmetic number, because the mean of its divisors is an integer number (10200309186).

Almost surely, 2^122203947291 is an apocalyptic number.

122203947291 is a deficient number, since it is larger than the sum of its proper divisors (41000999685).

122203947291 is an equidigital number, since it uses as much as digits as its factorization.

122203947291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15742.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 122203947291 in words is "one hundred twenty-two billion, two hundred three million, nine hundred forty-seven thousand, two hundred ninety-one".