221101020112101 has 8 divisors (see below), whose sum is σ = 302768964477984. Its totient is φ = 143416877910480.

The previous prime is 221101020112003. The next prime is 221101020112109. The reversal of 221101020112101 is 101211020101122.

It is a happy number.

221101020112101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 221101020112101 - 2¹⁴ = 221101020095717 is a prime.

It is a super-2 number, since 2×221101020112101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221101020112109) 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, 995950540935 + ... + 995950541156.

It is an arithmetic number, because the mean of its divisors is an integer number (37846120559748).

Almost surely, 2^{221101020112101} is an apocalyptic number.

It is an amenable number.

221101020112101 is a deficient number, since it is larger than the sum of its proper divisors (81667944365883).

221101020112101 is a wasteful number, since it uses less digits than its factorization.

221101020112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991901082131.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221101020112101 its reverse (101211020101122), we get a palindrome (322312040213223).

The spelling of 221101020112101 in words is "two hundred twenty-one trillion, one hundred one billion, twenty million, one hundred twelve thousand, one hundred one".