221102234524 has 12 divisors (see below), whose sum is σ = 387370112584. Its totient is φ = 110425059504.

The previous prime is 221102234519. The next prime is 221102234531. The reversal of 221102234524 is 425432201122.

It is a super-2 number, since 2×221102234524² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221102234492 and 221102234501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31510494 + ... + 31517509.

Almost surely, 2^221102234524 is an apocalyptic number.

It is an amenable number.

221102234524 is a deficient number, since it is larger than the sum of its proper divisors (166267878060).

221102234524 is a wasteful number, since it uses less digits than its factorization.

221102234524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63028884 (or 63028882 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 221102234524 its reverse (425432201122), we get a palindrome (646534435646).

The spelling of 221102234524 in words is "two hundred twenty-one billion, one hundred two million, two hundred thirty-four thousand, five hundred twenty-four".