221021113414101 has 64 divisors (see below), whose sum is σ = 395848555898880. Its totient is φ = 105937437392640.

The previous prime is 221021113414067. The next prime is 221021113414159. The reversal of 221021113414101 is 101414311120122.

It is not a de Polignac number, because 221021113414101 - 2⁹ = 221021113413589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221021113412101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9404815 + ... + 23032428.

It is an arithmetic number, because the mean of its divisors is an integer number (6185133685920).

Almost surely, 2^{221021113414101} is an apocalyptic number.

221021113414101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221021113414101 is a deficient number, since it is larger than the sum of its proper divisors (174827442484779).

221021113414101 is a wasteful number, since it uses less digits than its factorization.

221021113414101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32439546.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 221021113414101 its reverse (101414311120122), we get a palindrome (322435424534223).

The spelling of 221021113414101 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred thirteen million, four hundred fourteen thousand, one hundred one".