822270621061 has 2 divisors, whose sum is σ = 822270621062. Its totient is φ = 822270621060.

The previous prime is 822270621049. The next prime is 822270621143. The reversal of 822270621061 is 160126072228.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644792940100 + 177477680961 = 802990^2 + 421281^2 .

It is a cyclic number.

It is not a de Polignac number, because 822270621061 - 2²³ = 822262232453 is a prime.

It is a super-2 number, since 2×822270621061² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 822270621061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (822270621001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411135310530 + 411135310531.

It is an arithmetic number, because the mean of its divisors is an integer number (411135310531).

Almost surely, 2^822270621061 is an apocalyptic number.

It is an amenable number.

822270621061 is a deficient number, since it is larger than the sum of its proper divisors (1).

822270621061 is an equidigital number, since it uses as much as digits as its factorization.

822270621061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

Adding to 822270621061 its reverse (160126072228), we get a palindrome (982396693289).

The spelling of 822270621061 in words is "eight hundred twenty-two billion, two hundred seventy million, six hundred twenty-one thousand, sixty-one".