1331222010 has 16 divisors (see below), whose sum is σ = 3194932896. Its totient is φ = 354992528.

The previous prime is 1331221987. The next prime is 1331222021. The reversal of 1331222010 is 102221331.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22187004 + ... + 22187063.

It is an arithmetic number, because the mean of its divisors is an integer number (199683306).

Almost surely, 2^1331222010 is an apocalyptic number.

1331222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331222010 is an abundant number, since it is smaller than the sum of its proper divisors (1863710886).

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

1331222010 is a wasteful number, since it uses less digits than its factorization.

1331222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44374077.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1331222010 is about 36485.9152276601. The cubic root of 1331222010 is about 1100.0611563795.

Adding to 1331222010 its reverse (102221331), we get a palindrome (1433443341).

The spelling of 1331222010 in words is "one billion, three hundred thirty-one million, two hundred twenty-two thousand, ten".