401220424022105 has 16 divisors (see below), whose sum is σ = 527364776405520. Its totient is φ = 291678296082432.

The previous prime is 401220424021999. The next prime is 401220424022141. The reversal of 401220424022105 is 501220424022104.

It can be written as a sum of positive squares in 8 ways, for example, as 23938787281984 + 377281636740121 = 4892728^2 + 19423739^2 .

It is a cyclic number.

It is not a de Polignac number, because 401220424022105 - 2⁸ = 401220424021849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81383450684 + ... + 81383455613.

It is an arithmetic number, because the mean of its divisors is an integer number (32960298525345).

Almost surely, 2^{401220424022105} is an apocalyptic number.

It is an amenable number.

401220424022105 is a deficient number, since it is larger than the sum of its proper divisors (126144352383415).

401220424022105 is a wasteful number, since it uses less digits than its factorization.

401220424022105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162766906348.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 401220424022105 its reverse (501220424022104), we get a palindrome (902440848044209).

Subtracting 401220424022105 from its reverse (501220424022104), we obtain a palindrome (99999999999999).

The spelling of 401220424022105 in words is "four hundred one trillion, two hundred twenty billion, four hundred twenty-four million, twenty-two thousand, one hundred five".