1040401222111 has 4 divisors (see below), whose sum is σ = 1042486195000. Its totient is φ = 1038316249224.

The previous prime is 1040401222103. The next prime is 1040401222127. The reversal of 1040401222111 is 1112221040401.

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 1040401222111 - 2³ = 1040401222103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040401202111) 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, 1042485696 + ... + 1042486693.

It is an arithmetic number, because the mean of its divisors is an integer number (260621548750).

Almost surely, 2^{1040401222111} is an apocalyptic number.

1040401222111 is a deficient number, since it is larger than the sum of its proper divisors (2084972889).

1040401222111 is an equidigital number, since it uses as much as digits as its factorization.

1040401222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084972888.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1040401222111 its reverse (1112221040401), we get a palindrome (2152622262512).

The spelling of 1040401222111 in words is "one trillion, forty billion, four hundred one million, two hundred twenty-two thousand, one hundred eleven".