33221221210 has 16 divisors (see below), whose sum is σ = 59933190816. Its totient is φ = 13258490128.

The previous prime is 33221221181. The next prime is 33221221259. The reversal of 33221221210 is 1212212233.

It is a super-2 number, since 2×33221221210² (a number of 22 digits) contains 22 as substring.

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, 3745144 + ... + 3754003.

It is an arithmetic number, because the mean of its divisors is an integer number (3745824426).

Almost surely, 2^33221221210 is an apocalyptic number.

33221221210 is a deficient number, since it is larger than the sum of its proper divisors (26711969606).

33221221210 is a wasteful number, since it uses less digits than its factorization.

33221221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499597.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 33221221210 its reverse (1212212233), we get a palindrome (34433433443).

The spelling of 33221221210 in words is "thirty-three billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred ten".