212221123102 has 16 divisors (see below), whose sum is σ = 324361596960. Its totient is φ = 104100882912.

The previous prime is 212221123099. The next prime is 212221123117. The reversal of 212221123102 is 201321122212.

It is a self number, because there is not a number n which added to its sum of digits gives 212221123102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558468 + ... + 1689160.

It is an arithmetic number, because the mean of its divisors is an integer number (20272599810).

Almost surely, 2^212221123102 is an apocalyptic number.

212221123102 is a deficient number, since it is larger than the sum of its proper divisors (112140473858).

212221123102 is a wasteful number, since it uses less digits than its factorization.

212221123102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146067.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212221123102 its reverse (201321122212), we get a palindrome (413542245314).

The spelling of 212221123102 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred two".