212146422113 has 2 divisors, whose sum is σ = 212146422114. Its totient is φ = 212146422112.

The previous prime is 212146422091. The next prime is 212146422121. The reversal of 212146422113 is 311224641212.

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., 131139585424 + 81006836689 = 362132^2 + 284617^2 .

It is a cyclic number.

It is not a de Polignac number, because 212146422113 - 2²⁰ = 212145373537 is a prime.

It is a super-2 number, since 2×212146422113² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212146422133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106073211056 + 106073211057.

It is an arithmetic number, because the mean of its divisors is an integer number (106073211057).

Almost surely, 2^212146422113 is an apocalyptic number.

It is an amenable number.

212146422113 is a deficient number, since it is larger than the sum of its proper divisors (1).

212146422113 is an equidigital number, since it uses as much as digits as its factorization.

212146422113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The spelling of 212146422113 in words is "two hundred twelve billion, one hundred forty-six million, four hundred twenty-two thousand, one hundred thirteen".