221000100222029 has 2 divisors, whose sum is σ = 221000100222030. Its totient is φ = 221000100222028.

The previous prime is 221000100222001. The next prime is 221000100222043. The reversal of 221000100222029 is 920222001000122.

221000100222029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216813992406025 + 4186107816004 = 14724605^2 + 2045998^2 .

It is a cyclic number.

It is not a de Polignac number, because 221000100222029 - 2¹² = 221000100217933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221000100221995 and 221000100222013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221000100222059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110500050111014 + 110500050111015.

It is an arithmetic number, because the mean of its divisors is an integer number (110500050111015).

Almost surely, 2^{221000100222029} is an apocalyptic number.

It is an amenable number.

221000100222029 is a deficient number, since it is larger than the sum of its proper divisors (1).

221000100222029 is an equidigital number, since it uses as much as digits as its factorization.

221000100222029 is an evil number, because the sum of its binary digits is even.

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

The spelling of 221000100222029 in words is "two hundred twenty-one trillion, one hundred million, two hundred twenty-two thousand, twenty-nine".