221212031014 has 16 divisors (see below), whose sum is σ = 357352096752. Its totient is φ = 102095121888.

The previous prime is 221212031011. The next prime is 221212031057. The reversal of 221212031014 is 410130212122.

It is a junction number, because it is equal to n+sod(n) for n = 221212030982 and 221212031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221212031011) 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, 1129617 + ... + 1310899.

It is an arithmetic number, because the mean of its divisors is an integer number (22334506047).

Almost surely, 2^221212031014 is an apocalyptic number.

221212031014 is a deficient number, since it is larger than the sum of its proper divisors (136140065738).

221212031014 is a wasteful number, since it uses less digits than its factorization.

221212031014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228231.

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

Adding to 221212031014 its reverse (410130212122), we get a palindrome (631342243136).

The spelling of 221212031014 in words is "two hundred twenty-one billion, two hundred twelve million, thirty-one thousand, fourteen".