2111222022001 has 2 divisors, whose sum is σ = 2111222022002. Its totient is φ = 2111222022000.

The previous prime is 2111222021989. The next prime is 2111222022043. The reversal of 2111222022001 is 1002202221112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376395893601 + 734826128400 = 1173199^2 + 857220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111222022001 - 2¹⁷ = 2111221890929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111222020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055611011000 + 1055611011001.

It is an arithmetic number, because the mean of its divisors is an integer number (1055611011001).

Almost surely, 2^{2111222022001} is an apocalyptic number.

It is an amenable number.

2111222022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111222022001 is an equidigital number, since it uses as much as digits as its factorization.

2111222022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2111222022001 its reverse (1002202221112), we get a palindrome (3113424243113).

The spelling of 2111222022001 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, twenty-two thousand, one".