7401221110021 has 8 divisors (see below), whose sum is σ = 7796630046080. Its totient is φ = 7006399272288.

The previous prime is 7401221110007. The next prime is 7401221110043. The reversal of 7401221110021 is 1200111221047.

It is a happy number.

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 7401221110021 - 2⁹ = 7401221109509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7401221109974 and 7401221110001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7401221110061) 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, 146748696 + ... + 146799121.

It is an arithmetic number, because the mean of its divisors is an integer number (974578755760).

Almost surely, 2^{7401221110021} is an apocalyptic number.

It is an amenable number.

7401221110021 is a deficient number, since it is larger than the sum of its proper divisors (395408936059).

7401221110021 is a wasteful number, since it uses less digits than its factorization.

7401221110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293549163.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 7401221110021 its reverse (1200111221047), we get a palindrome (8601332331068).

The spelling of 7401221110021 in words is "seven trillion, four hundred one billion, two hundred twenty-one million, one hundred ten thousand, twenty-one".