220312532197 has 2 divisors, whose sum is σ = 220312532198. Its totient is φ = 220312532196.

The previous prime is 220312532149. The next prime is 220312532213. The reversal of 220312532197 is 791235213022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157284421281 + 63028110916 = 396591^2 + 251054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220312532197 is a prime.

It is a super-2 number, since 2×220312532197² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220312532107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110156266098 + 110156266099.

It is an arithmetic number, because the mean of its divisors is an integer number (110156266099).

Almost surely, 2^220312532197 is an apocalyptic number.

It is an amenable number.

220312532197 is a deficient number, since it is larger than the sum of its proper divisors (1).

220312532197 is an equidigital number, since it uses as much as digits as its factorization.

220312532197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

It can be divided in two parts, 2203125 and 32197, that added together give a palindrome (2235322).

The spelling of 220312532197 in words is "two hundred twenty billion, three hundred twelve million, five hundred thirty-two thousand, one hundred ninety-seven".