1111211412001 has 4 divisors (see below), whose sum is σ = 1126433486212. Its totient is φ = 1095989337792.

The previous prime is 1111211411969. The next prime is 1111211412007. The reversal of 1111211412001 is 1002141121111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 919959131025 + 191252280976 = 959145^2 + 437324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111211412001 - 2⁵ = 1111211411969 is a prime.

It is a super-2 number, since 2×1111211412001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111211412007) 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, 7611036996 + ... + 7611037141.

It is an arithmetic number, because the mean of its divisors is an integer number (281608371553).

Almost surely, 2^{1111211412001} is an apocalyptic number.

It is an amenable number.

1111211412001 is a deficient number, since it is larger than the sum of its proper divisors (15222074211).

1111211412001 is an equidigital number, since it uses as much as digits as its factorization.

1111211412001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222074210.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1111211412001 its reverse (1002141121111), we get a palindrome (2113352533112).

The spelling of 1111211412001 in words is "one trillion, one hundred eleven billion, two hundred eleven million, four hundred twelve thousand, one".