1201110222061 has 2 divisors, whose sum is σ = 1201110222062. Its totient is φ = 1201110222060.

The previous prime is 1201110221989. The next prime is 1201110222077. The reversal of 1201110222061 is 1602220111021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085751496036 + 115358726025 = 1041994^2 + 339645^2 .

It is an emirp because it is prime and its reverse (1602220111021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201110222061 - 2⁷ = 1201110221933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201110229061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600555111030 + 600555111031.

It is an arithmetic number, because the mean of its divisors is an integer number (600555111031).

Almost surely, 2^{1201110222061} is an apocalyptic number.

It is an amenable number.

1201110222061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201110222061 is an equidigital number, since it uses as much as digits as its factorization.

1201110222061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1201110222061 its reverse (1602220111021), we get a palindrome (2803330333082).

The spelling of 1201110222061 in words is "one trillion, two hundred one billion, one hundred ten million, two hundred twenty-two thousand, sixty-one".