221029511932 has 24 divisors (see below), whose sum is σ = 423677262960. Its totient is φ = 100427201280.

The previous prime is 221029511921. The next prime is 221029512031. The reversal of 221029511932 is 239115920122.

It is a junction number, because it is equal to n+sod(n) for n = 221029511891 and 221029511900.

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, 56039994 + ... + 56043937.

It is an arithmetic number, because the mean of its divisors is an integer number (17653219290).

Almost surely, 2^221029511932 is an apocalyptic number.

It is an amenable number.

221029511932 is a deficient number, since it is larger than the sum of its proper divisors (202647751028).

221029511932 is a wasteful number, since it uses less digits than its factorization.

221029511932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112083981 (or 112083979 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 221029511932 in words is "two hundred twenty-one billion, twenty-nine million, five hundred eleven thousand, nine hundred thirty-two".