90201222143 has 2 divisors, whose sum is σ = 90201222144. Its totient is φ = 90201222142.

The previous prime is 90201222019. The next prime is 90201222157. The reversal of 90201222143 is 34122210209.

It is a strong prime.

It is an emirp because it is prime and its reverse (34122210209) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90201222143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90201222173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45100611071 + 45100611072.

It is an arithmetic number, because the mean of its divisors is an integer number (45100611072).

Almost surely, 2^90201222143 is an apocalyptic number.

90201222143 is a deficient number, since it is larger than the sum of its proper divisors (1).

90201222143 is an equidigital number, since it uses as much as digits as its factorization.

90201222143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 90201222143 in words is "ninety billion, two hundred one million, two hundred twenty-two thousand, one hundred forty-three".