401012220111 has 8 divisors (see below), whose sum is σ = 536223834624. Its totient is φ = 266571042840.

The previous prime is 401012220109. The next prime is 401012220113. The reversal of 401012220111 is 111022210104.

It is an interprime number because it is at equal distance from previous prime (401012220109) and next prime (401012220113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401012220111 - 2¹ = 401012220109 is a prime.

It is a super-2 number, since 2×401012220111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401012220113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192608095 + ... + 192610176.

It is an arithmetic number, because the mean of its divisors is an integer number (67027979328).

Almost surely, 2^401012220111 is an apocalyptic number.

401012220111 is a deficient number, since it is larger than the sum of its proper divisors (135211614513).

401012220111 is a wasteful number, since it uses less digits than its factorization.

401012220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385218621.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 401012220111 its reverse (111022210104), we get a palindrome (512034430215).

The spelling of 401012220111 in words is "four hundred one billion, twelve million, two hundred twenty thousand, one hundred eleven".