11120001222001 has 12 divisors (see below), whose sum is σ = 12937225595700. Its totient is φ = 9530166693600.

The previous prime is 11120001221957. The next prime is 11120001222013. The reversal of 11120001222001 is 10022210002111.

It can be written as a sum of positive squares in 2 ways, for example, as 5537437286976 + 5582563935025 = 2353176^2 + 2362745^2 .

It is not a de Polignac number, because 11120001222001 - 2⁷ = 11120001221873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11120001228001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14661150 + ... + 15400951.

It is an arithmetic number, because the mean of its divisors is an integer number (1078102132975).

Almost surely, 2^{11120001222001} is an apocalyptic number.

It is an amenable number.

11120001222001 is a deficient number, since it is larger than the sum of its proper divisors (1817224373699).

11120001222001 is an equidigital number, since it uses as much as digits as its factorization.

11120001222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30069664 (or 30069657 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11120001222001 its reverse (10022210002111), we get a palindrome (21142211224112).

The spelling of 11120001222001 in words is "eleven trillion, one hundred twenty billion, one million, two hundred twenty-two thousand, one".