221133300042 has 32 divisors (see below), whose sum is σ = 444794980608. Its totient is φ = 73290110976.

The previous prime is 221133300007. The next prime is 221133300083. The reversal of 221133300042 is 240003331122.

It is a junction number, because it is equal to n+sod(n) for n = 221133299991 and 221133300018.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2165343 + ... + 2265165.

It is an arithmetic number, because the mean of its divisors is an integer number (13899843144).

Almost surely, 2^221133300042 is an apocalyptic number.

221133300042 is an abundant number, since it is smaller than the sum of its proper divisors (223661680566).

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

221133300042 is a wasteful number, since it uses less digits than its factorization.

221133300042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101934.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221133300042 its reverse (240003331122), we get a palindrome (461136631164).

The spelling of 221133300042 in words is "two hundred twenty-one billion, one hundred thirty-three million, three hundred thousand, forty-two".