100401221240441 has 4 divisors (see below), whose sum is σ = 109528604989584. Its totient is φ = 91273837491300.

The previous prime is 100401221240429. The next prime is 100401221240447. The reversal of 100401221240441 is 144042122104001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100401221240441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100401221240441.

It is not an unprimeable number, because it can be changed into a prime (100401221240447) 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, 4563691874555 + ... + 4563691874576.

It is an arithmetic number, because the mean of its divisors is an integer number (27382151247396).

Almost surely, 2^{100401221240441} is an apocalyptic number.

100401221240441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100401221240441 is a deficient number, since it is larger than the sum of its proper divisors (9127383749143).

100401221240441 is an equidigital number, since it uses as much as digits as its factorization.

100401221240441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9127383749142.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 100401221240441 its reverse (144042122104001), we get a palindrome (244443343344442).

The spelling of 100401221240441 in words is "one hundred trillion, four hundred one billion, two hundred twenty-one million, two hundred forty thousand, four hundred forty-one".