21229022841 has 16 divisors (see below), whose sum is σ = 30640651776. Its totient is φ = 12996320256.

The previous prime is 21229022807. The next prime is 21229022849. The reversal of 21229022841 is 14822092212.

It is not a de Polignac number, because 21229022841 - 2⁷ = 21229022713 is a prime.

It is a super-2 number, since 2×21229022841² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21229022849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1402665 + ... + 1417718.

It is an arithmetic number, because the mean of its divisors is an integer number (1915040736).

Almost surely, 2^21229022841 is an apocalyptic number.

It is an amenable number.

21229022841 is a deficient number, since it is larger than the sum of its proper divisors (9411628935).

21229022841 is a wasteful number, since it uses less digits than its factorization.

21229022841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820592.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 21229022841 in words is "twenty-one billion, two hundred twenty-nine million, twenty-two thousand, eight hundred forty-one".