222012111121061 has 2 divisors, whose sum is σ = 222012111121062. Its totient is φ = 222012111121060.

The previous prime is 222012111121051. The next prime is 222012111121063. The reversal of 222012111121061 is 160121111210222.

222012111121061 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., 117974028712225 + 104038082408836 = 10861585^2 + 10199906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222012111121061 is a prime.

Together with 222012111121063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222012111121063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111006055560530 + 111006055560531.

It is an arithmetic number, because the mean of its divisors is an integer number (111006055560531).

Almost surely, 2^{222012111121061} is an apocalyptic number.

It is an amenable number.

222012111121061 is a deficient number, since it is larger than the sum of its proper divisors (1).

222012111121061 is an equidigital number, since it uses as much as digits as its factorization.

222012111121061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 222012111121061 its reverse (160121111210222), we get a palindrome (382133222331283).

The spelling of 222012111121061 in words is "two hundred twenty-two trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, sixty-one".