221102011000212 has 96 divisors (see below), whose sum is σ = 524906940418560. Its totient is φ = 72415874517120.

The previous prime is 221102011000187. The next prime is 221102011000217. The reversal of 221102011000212 is 212000110201122.

It is a junction number, because it is equal to n+sod(n) for n = 221102011000191 and 221102011000200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102011000217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17700899287 + ... + 17700911777.

It is an arithmetic number, because the mean of its divisors is an integer number (5467780629360).

Almost surely, 2^{221102011000212} is an apocalyptic number.

It is an amenable number.

221102011000212 is an abundant number, since it is smaller than the sum of its proper divisors (303804929418348).

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

221102011000212 is a wasteful number, since it uses less digits than its factorization.

221102011000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853 (or 22851 counting only the distinct ones).

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

Adding to 221102011000212 its reverse (212000110201122), we get a palindrome (433102121201334).

The spelling of 221102011000212 in words is "two hundred twenty-one trillion, one hundred two billion, eleven million, two hundred twelve", and thus it is an aban number.