221111000201112 has 128 divisors (see below), whose sum is σ = 632289501066240. Its totient is φ = 63120204933120.

The previous prime is 221111000201101. The next prime is 221111000201137. The reversal of 221111000201112 is 211102000111122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221111000201091 and 221111000201100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1905397812 + ... + 1905513852.

It is an arithmetic number, because the mean of its divisors is an integer number (4939761727080).

Almost surely, 2^{221111000201112} is an apocalyptic number.

It is an amenable number.

221111000201112 is an abundant number, since it is smaller than the sum of its proper divisors (411178500865128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221111000201112 is a wasteful number, since it uses less digits than its factorization.

221111000201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125721 (or 125717 counting only the distinct ones).

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

Adding to 221111000201112 its reverse (211102000111122), we get a palindrome (432213000312234).

The spelling of 221111000201112 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred one thousand, one hundred twelve".