21212202210083 has 2 divisors, whose sum is σ = 21212202210084. Its totient is φ = 21212202210082.

The previous prime is 21212202210079. The next prime is 21212202210103. The reversal of 21212202210083 is 38001220221212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21212202210083 - 2² = 21212202210079 is a prime.

It is not a weakly prime, because it can be changed into another prime (21212202210053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606101105041 + 10606101105042.

It is an arithmetic number, because the mean of its divisors is an integer number (10606101105042).

Almost surely, 2^{21212202210083} is an apocalyptic number.

21212202210083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21212202210083 is an equidigital number, since it uses as much as digits as its factorization.

21212202210083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21212202210083 its reverse (38001220221212), we get a palindrome (59213422431295).

The spelling of 21212202210083 in words is "twenty-one trillion, two hundred twelve billion, two hundred two million, two hundred ten thousand, eighty-three".