401020020211 has 4 divisors (see below), whose sum is σ = 414848296800. Its totient is φ = 387191743624.

The previous prime is 401020020209. The next prime is 401020020241. The reversal of 401020020211 is 112020020104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401020020211 - 2¹ = 401020020209 is a prime.

It is a super-2 number, since 2×401020020211² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401020020191 and 401020020200.

It is not an unprimeable number, because it can be changed into a prime (401020020241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6914138251 + ... + 6914138308.

It is an arithmetic number, because the mean of its divisors is an integer number (103712074200).

Almost surely, 2^401020020211 is an apocalyptic number.

401020020211 is a deficient number, since it is larger than the sum of its proper divisors (13828276589).

401020020211 is a wasteful number, since it uses less digits than its factorization.

401020020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13828276588.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 401020020211 its reverse (112020020104), we get a palindrome (513040040315).

The spelling of 401020020211 in words is "four hundred one billion, twenty million, twenty thousand, two hundred eleven".