22101022001 has 2 divisors, whose sum is σ = 22101022002. Its totient is φ = 22101022000.

The previous prime is 22101021979. The next prime is 22101022019. The reversal of 22101022001 is 10022010122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21047045776 + 1053976225 = 145076^2 + 32465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22101022001 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101022901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050511000 + 11050511001.

It is an arithmetic number, because the mean of its divisors is an integer number (11050511001).

Almost surely, 2^22101022001 is an apocalyptic number.

It is an amenable number.

22101022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101022001 is an equidigital number, since it uses as much as digits as its factorization.

22101022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22101022001 its reverse (10022010122), we get a palindrome (32123032123).

The spelling of 22101022001 in words is "twenty-two billion, one hundred one million, twenty-two thousand, one".