221011122022057 has 2 divisors, whose sum is σ = 221011122022058. Its totient is φ = 221011122022056.

The previous prime is 221011122022007. The next prime is 221011122022231. The reversal of 221011122022057 is 750220221110122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205207229403136 + 15803892618921 = 14325056^2 + 3975411^2 .

It is a cyclic number.

It is not a de Polignac number, because 221011122022057 - 2¹⁹ = 221011121497769 is a prime.

It is a super-2 number, since 2×221011122022057² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221011122022007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505561011028 + 110505561011029.

It is an arithmetic number, because the mean of its divisors is an integer number (110505561011029).

Almost surely, 2^{221011122022057} is an apocalyptic number.

It is an amenable number.

221011122022057 is a deficient number, since it is larger than the sum of its proper divisors (1).

221011122022057 is an equidigital number, since it uses as much as digits as its factorization.

221011122022057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

Adding to 221011122022057 its reverse (750220221110122), we get a palindrome (971231343132179).

The spelling of 221011122022057 in words is "two hundred twenty-one trillion, eleven billion, one hundred twenty-two million, twenty-two thousand, fifty-seven".