2112122220073 has 2 divisors, whose sum is σ = 2112122220074. Its totient is φ = 2112122220072.

The previous prime is 2112122220031. The next prime is 2112122220113. The reversal of 2112122220073 is 3700222212112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088149271849 + 23972948224 = 1445043^2 + 154832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112122220073 - 2²⁵ = 2112088665641 is a prime.

It is a super-2 number, since 2×2112122220073² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112122226073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056061110036 + 1056061110037.

It is an arithmetic number, because the mean of its divisors is an integer number (1056061110037).

Almost surely, 2^{2112122220073} is an apocalyptic number.

It is an amenable number.

2112122220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112122220073 is an equidigital number, since it uses as much as digits as its factorization.

2112122220073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 2112122220073 its reverse (3700222212112), we get a palindrome (5812344432185).

The spelling of 2112122220073 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty thousand, seventy-three".