2210020201891 has 2 divisors, whose sum is σ = 2210020201892. Its totient is φ = 2210020201890.

The previous prime is 2210020201861. The next prime is 2210020201957. The reversal of 2210020201891 is 1981020200122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2210020201891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210020201861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105010100945 + 1105010100946.

It is an arithmetic number, because the mean of its divisors is an integer number (1105010100946).

Almost surely, 2^{2210020201891} is an apocalyptic number.

2210020201891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210020201891 is an equidigital number, since it uses as much as digits as its factorization.

2210020201891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 2210020201891 in words is "two trillion, two hundred ten billion, twenty million, two hundred one thousand, eight hundred ninety-one".