1331222202 has 40 divisors (see below), whose sum is σ = 2988481716. Its totient is φ = 442914048.

The previous prime is 1331222171. The next prime is 1331222227. The reversal of 1331222202 is 2022221331.

It can be written as a sum of positive squares in 2 ways, for example, as 1251673641 + 79548561 = 35379^2 + 8919^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82858 + ... + 97610.

Almost surely, 2^1331222202 is an apocalyptic number.

1331222202 is an abundant number, since it is smaller than the sum of its proper divisors (1657259514).

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

1331222202 is a wasteful number, since it uses less digits than its factorization.

1331222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15324 (or 15315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1331222202 is about 36485.9178588123. The cubic root of 1331222202 is about 1100.0612092661.

Adding to 1331222202 its reverse (2022221331), we get a palindrome (3353443533).

The spelling of 1331222202 in words is "one billion, three hundred thirty-one million, two hundred twenty-two thousand, two hundred two".