722210611121 has 2 divisors, whose sum is σ = 722210611122. Its totient is φ = 722210611120.

The previous prime is 722210611117. The next prime is 722210611123. The reversal of 722210611121 is 121116012227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 674592824896 + 47617786225 = 821336^2 + 218215^2 .

It is a cyclic number.

It is not a de Polignac number, because 722210611121 - 2² = 722210611117 is a prime.

Together with 722210611123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (722210611123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361105305560 + 361105305561.

It is an arithmetic number, because the mean of its divisors is an integer number (361105305561).

Almost surely, 2^722210611121 is an apocalyptic number.

It is an amenable number.

722210611121 is a deficient number, since it is larger than the sum of its proper divisors (1).

722210611121 is an equidigital number, since it uses as much as digits as its factorization.

722210611121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 722210611121 its reverse (121116012227), we get a palindrome (843326623348).

It can be divided in two parts, 722210 and 611121, that added together give a palindrome (1333331).

The spelling of 722210611121 in words is "seven hundred twenty-two billion, two hundred ten million, six hundred eleven thousand, one hundred twenty-one".