210220222231291 has 4 divisors (see below), whose sum is σ = 210284845727392. Its totient is φ = 210155598735192.

The previous prime is 210220222231277. The next prime is 210220222231297. The reversal of 210220222231291 is 192132222022012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210220222231291 - 2⁵ = 210220222231259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210220222231297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32311743171 + ... + 32311749676.

It is an arithmetic number, because the mean of its divisors is an integer number (52571211431848).

Almost surely, 2^{210220222231291} is an apocalyptic number.

210220222231291 is a deficient number, since it is larger than the sum of its proper divisors (64623496101).

210220222231291 is an equidigital number, since it uses as much as digits as its factorization.

210220222231291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64623496100.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 210220222231291 in words is "two hundred ten trillion, two hundred twenty billion, two hundred twenty-two million, two hundred thirty-one thousand, two hundred ninety-one".