3223221000 has 128 divisors (see below), whose sum is σ = 10082741760. Its totient is φ = 857280000.

The previous prime is 3223220977. The next prime is 3223221017. The reversal of 3223221000 is 1223223.

It is a super-2 number, since 2×3223221000² = 20778307229682000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1369825 + ... + 1372175.

It is an arithmetic number, because the mean of its divisors is an integer number (78771420).

Almost surely, 2^3223221000 is an apocalyptic number.

3223221000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3223221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5041370880).

3223221000 is an abundant number, since it is smaller than the sum of its proper divisors (6859520760).

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

3223221000 is a wasteful number, since it uses less digits than its factorization.

3223221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832 (or 2818 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3223221000 is about 56773.4180757157. The cubic root of 3223221000 is about 1477.1684661293.

Adding to 3223221000 its reverse (1223223), we get a palindrome (3224444223).

The spelling of 3223221000 in words is "three billion, two hundred twenty-three million, two hundred twenty-one thousand".