212202111001 has 2 divisors, whose sum is σ = 212202111002. Its totient is φ = 212202111000.

The previous prime is 212202110977. The next prime is 212202111053. The reversal of 212202111001 is 100111202212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112342950976 + 99859160025 = 335176^2 + 316005^2 .

It is a cyclic number.

It is not a de Polignac number, because 212202111001 - 2⁵ = 212202110969 is a prime.

It is not a weakly prime, because it can be changed into another prime (212202111061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106101055500 + 106101055501.

It is an arithmetic number, because the mean of its divisors is an integer number (106101055501).

Almost surely, 2^212202111001 is an apocalyptic number.

It is an amenable number.

212202111001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212202111001 is an equidigital number, since it uses as much as digits as its factorization.

212202111001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212202111001 its reverse (100111202212), we get a palindrome (312313313213).

The spelling of 212202111001 in words is "two hundred twelve billion, two hundred two million, one hundred eleven thousand, one".