1244101140021 has 8 divisors (see below), whose sum is σ = 1659264757344. Its totient is φ = 829169141360.

The previous prime is 1244101140001. The next prime is 1244101140089. The reversal of 1244101140021 is 1200411014421.

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

It is a cyclic number.

It is not a de Polignac number, because 1244101140021 - 2²⁷ = 1243966922293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1244101140021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244101140001) 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, 57892131 + ... + 57913616.

It is an arithmetic number, because the mean of its divisors is an integer number (207408094668).

Almost surely, 2^{1244101140021} is an apocalyptic number.

It is an amenable number.

1244101140021 is a deficient number, since it is larger than the sum of its proper divisors (415163617323).

1244101140021 is a wasteful number, since it uses less digits than its factorization.

1244101140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115809331.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1244101140021 its reverse (1200411014421), we get a palindrome (2444512154442).

The spelling of 1244101140021 in words is "one trillion, two hundred forty-four billion, one hundred one million, one hundred forty thousand, twenty-one".