21012222010183 has 2 divisors, whose sum is σ = 21012222010184. Its totient is φ = 21012222010182.

The previous prime is 21012222010097. The next prime is 21012222010261. The reversal of 21012222010183 is 38101022221012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21012222010183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21012222014183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506111005091 + 10506111005092.

It is an arithmetic number, because the mean of its divisors is an integer number (10506111005092).

Almost surely, 2^{21012222010183} is an apocalyptic number.

21012222010183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21012222010183 is an equidigital number, since it uses as much as digits as its factorization.

21012222010183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 21012222010183 its reverse (38101022221012), we get a palindrome (59113244231195).

The spelling of 21012222010183 in words is "twenty-one trillion, twelve billion, two hundred twenty-two million, ten thousand, one hundred eighty-three".