220022100061 has 2 divisors, whose sum is σ = 220022100062. Its totient is φ = 220022100060.

The previous prime is 220022100059. The next prime is 220022100071. The reversal of 220022100061 is 160001220022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216923062500 + 3099037561 = 465750^2 + 55669^2 .

It is a cyclic number.

It is not a de Polignac number, because 220022100061 - 2¹ = 220022100059 is a prime.

Together with 220022100059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220022100031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110011050030 + 110011050031.

It is an arithmetic number, because the mean of its divisors is an integer number (110011050031).

Almost surely, 2^220022100061 is an apocalyptic number.

It is an amenable number.

220022100061 is a deficient number, since it is larger than the sum of its proper divisors (1).

220022100061 is an equidigital number, since it uses as much as digits as its factorization.

220022100061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 220022100061 its reverse (160001220022), we get a palindrome (380023320083).

The spelling of 220022100061 in words is "two hundred twenty billion, twenty-two million, one hundred thousand, sixty-one".