220211143912237 has 2 divisors, whose sum is σ = 220211143912238. Its totient is φ = 220211143912236.

The previous prime is 220211143912213. The next prime is 220211143912273. The reversal of 220211143912237 is 732219341112022.

It is a happy number.

Together with next prime (220211143912273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120705511399236 + 99505632513001 = 10986606^2 + 9975251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220211143912237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220211143912237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220211143952237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105571956118 + 110105571956119.

It is an arithmetic number, because the mean of its divisors is an integer number (110105571956119).

Almost surely, 2^{220211143912237} is an apocalyptic number.

It is an amenable number.

220211143912237 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211143912237 is an equidigital number, since it uses as much as digits as its factorization.

220211143912237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 220211143912237 in words is "two hundred twenty trillion, two hundred eleven billion, one hundred forty-three million, nine hundred twelve thousand, two hundred thirty-seven".