401421321240022 has 64 divisors (see below), whose sum is σ = 639621100800000. Its totient is φ = 188656017921280.

The previous prime is 401421321240011. The next prime is 401421321240187. The reversal of 401421321240022 is 220042123124104.

It is a super-2 number, since 2×401421321240022² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213792354 + ... + 215661802.

It is an arithmetic number, because the mean of its divisors is an integer number (9994079700000).

Almost surely, 2^{401421321240022} is an apocalyptic number.

401421321240022 is a deficient number, since it is larger than the sum of its proper divisors (238199779559978).

401421321240022 is a wasteful number, since it uses less digits than its factorization.

401421321240022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870149.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 401421321240022 its reverse (220042123124104), we get a palindrome (621463444364126).

The spelling of 401421321240022 in words is "four hundred one trillion, four hundred twenty-one billion, three hundred twenty-one million, two hundred forty thousand, twenty-two".