12220212201973 has 2 divisors, whose sum is σ = 12220212201974. Its totient is φ = 12220212201972.

The previous prime is 12220212201971. The next prime is 12220212202193. The reversal of 12220212201973 is 37910221202221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12181726394289 + 38485807684 = 3490233^2 + 196178^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220212201973 - 2¹ = 12220212201971 is a prime.

It is a super-2 number, since 2×12220212201973² (a number of 27 digits) contains 22 as substring.

Together with 12220212201971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220212201971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110106100986 + 6110106100987.

It is an arithmetic number, because the mean of its divisors is an integer number (6110106100987).

Almost surely, 2^{12220212201973} is an apocalyptic number.

It is an amenable number.

12220212201973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220212201973 is an equidigital number, since it uses as much as digits as its factorization.

12220212201973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 12220212201973 in words is "twelve trillion, two hundred twenty billion, two hundred twelve million, two hundred one thousand, nine hundred seventy-three".