221112010101 has 8 divisors (see below), whose sum is σ = 302784013984. Its totient is φ = 143424006480.

The previous prime is 221112010051. The next prime is 221112010109. The reversal of 221112010101 is 101010211122.

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

It is not a de Polignac number, because 221112010101 - 2⁹ = 221112009589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112010109) 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, 995999935 + ... + 996000156.

It is an arithmetic number, because the mean of its divisors is an integer number (37848001748).

Almost surely, 2^221112010101 is an apocalyptic number.

It is an amenable number.

221112010101 is a deficient number, since it is larger than the sum of its proper divisors (81672003883).

221112010101 is a wasteful number, since it uses less digits than its factorization.

221112010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992000131.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221112010101 its reverse (101010211122), we get a palindrome (322122221223).

The spelling of 221112010101 in words is "two hundred twenty-one billion, one hundred twelve million, ten thousand, one hundred one".