221002211112 has 32 divisors (see below), whose sum is σ = 565981274880. Its totient is φ = 71870637440.

The previous prime is 221002211107. The next prime is 221002211113. The reversal of 221002211112 is 211112200122.

It is a junction number, because it is equal to n+sod(n) for n = 221002211091 and 221002211100.

It is not an unprimeable number, because it can be changed into a prime (221002211113) 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, 112296888 + ... + 112298855.

It is an arithmetic number, because the mean of its divisors is an integer number (17686914840).

Almost surely, 2^221002211112 is an apocalyptic number.

It is an amenable number.

221002211112 is an abundant number, since it is smaller than the sum of its proper divisors (344979063768).

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

221002211112 is a wasteful number, since it uses less digits than its factorization.

221002211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224595793 (or 224595789 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221002211112 its reverse (211112200122), we get a palindrome (432114411234).

The spelling of 221002211112 in words is "two hundred twenty-one billion, two million, two hundred eleven thousand, one hundred twelve".