221122020029 has 2 divisors, whose sum is σ = 221122020030. Its totient is φ = 221122020028.

The previous prime is 221122019977. The next prime is 221122020061. The reversal of 221122020029 is 920020221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196785396025 + 24336624004 = 443605^2 + 156002^2 .

It is a cyclic number.

It is not a de Polignac number, because 221122020029 - 2⁸ = 221122019773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221122019986 and 221122020013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221122020529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561010014 + 110561010015.

It is an arithmetic number, because the mean of its divisors is an integer number (110561010015).

Almost surely, 2^221122020029 is an apocalyptic number.

It is an amenable number.

221122020029 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122020029 is an equidigital number, since it uses as much as digits as its factorization.

221122020029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 221122020029 in words is "two hundred twenty-one billion, one hundred twenty-two million, twenty thousand, twenty-nine".