21122310022001 has 2 divisors, whose sum is σ = 21122310022002. Its totient is φ = 21122310022000.

The previous prime is 21122310021941. The next prime is 21122310022003. The reversal of 21122310022001 is 10022001322112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14337582250000 + 6784727772001 = 3786500^2 + 2604751^2 .

It is a cyclic number.

It is not a de Polignac number, because 21122310022001 - 2²⁶ = 21122242913137 is a prime.

Together with 21122310022003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21122310022003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561155011000 + 10561155011001.

It is an arithmetic number, because the mean of its divisors is an integer number (10561155011001).

Almost surely, 2^{21122310022001} is an apocalyptic number.

It is an amenable number.

21122310022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122310022001 is an equidigital number, since it uses as much as digits as its factorization.

21122310022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21122310022001 its reverse (10022001322112), we get a palindrome (31144311344113).

The spelling of 21122310022001 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred ten million, twenty-two thousand, one".