110021132421 has 24 divisors (see below), whose sum is σ = 160301308544. Its totient is φ = 72711626400.

The previous prime is 110021132401. The next prime is 110021132483. The reversal of 110021132421 is 124231120011.

110021132421 is a `hidden beast` number, since 1 + 1 + 0 + 0 + 211 + 32 + 421 = 666.

It is not a de Polignac number, because 110021132421 - 2¹⁵ = 110021099653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110021132394 and 110021132403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021132401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 578715 + ... + 744951.

Almost surely, 2^110021132421 is an apocalyptic number.

It is an amenable number.

110021132421 is a deficient number, since it is larger than the sum of its proper divisors (50280176123).

110021132421 is a wasteful number, since it uses less digits than its factorization.

110021132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166881 (or 166878 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 110021132421 its reverse (124231120011), we get a palindrome (234252252432).

The spelling of 110021132421 in words is "one hundred ten billion, twenty-one million, one hundred thirty-two thousand, four hundred twenty-one".