221211000011213 has 2 divisors, whose sum is σ = 221211000011214. Its totient is φ = 221211000011212.

The previous prime is 221211000011161. The next prime is 221211000011227. The reversal of 221211000011213 is 312110000112122.

It is a happy number.

221211000011213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220778796325129 + 432203686084 = 14858627^2 + 657422^2 .

It is a cyclic number.

It is not a de Polignac number, because 221211000011213 - 2³⁶ = 221142280534477 is a prime.

It is a super-2 number, since 2×221211000011213² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221211000011191 and 221211000011200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221211000511213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605500005606 + 110605500005607.

It is an arithmetic number, because the mean of its divisors is an integer number (110605500005607).

Almost surely, 2^{221211000011213} is an apocalyptic number.

It is an amenable number.

221211000011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

221211000011213 is an equidigital number, since it uses as much as digits as its factorization.

221211000011213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 221211000011213 its reverse (312110000112122), we get a palindrome (533321000123335).

The spelling of 221211000011213 in words is "two hundred twenty-one trillion, two hundred eleven billion, eleven thousand, two hundred thirteen".