1333212220 has 24 divisors (see below), whose sum is σ = 2818293408. Its totient is φ = 529752000.

The previous prime is 1333212187. The next prime is 1333212247. The reversal of 1333212220 is 222123331.

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, 217711 + ... + 223750.

It is an arithmetic number, because the mean of its divisors is an integer number (117428892).

Almost surely, 2^1333212220 is an apocalyptic number.

1333212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1333212220 is an abundant number, since it is smaller than the sum of its proper divisors (1485081188).

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

1333212220 is a wasteful number, since it uses less digits than its factorization.

1333212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441621 (or 441619 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1333212220 is about 36513.1787167319. The cubic root of 1333212220 is about 1100.6090896712.

Adding to 1333212220 its reverse (222123331), we get a palindrome (1555335551).

Subtracting from 1333212220 its reverse (222123331), we obtain a square (1111088889 = 33333²).

It can be divided in two parts, 13332 and 12220, that added together give a palindrome (25552).

The spelling of 1333212220 in words is "one billion, three hundred thirty-three million, two hundred twelve thousand, two hundred twenty".