33012220522 has 4 divisors (see below), whose sum is σ = 49518330786. Its totient is φ = 16506110260.

The previous prime is 33012220519. The next prime is 33012220543. The reversal of 33012220522 is 22502221033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24627338761 + 8384881761 = 156931^2 + 91569^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33012220493 and 33012220502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253055129 + ... + 8253055132.

Almost surely, 2^33012220522 is an apocalyptic number.

33012220522 is a deficient number, since it is larger than the sum of its proper divisors (16506110264).

33012220522 is a wasteful number, since it uses less digits than its factorization.

33012220522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506110263.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 33012220522 its reverse (22502221033), we get a palindrome (55514441555).

The spelling of 33012220522 in words is "thirty-three billion, twelve million, two hundred twenty thousand, five hundred twenty-two".