1331122002 has 16 divisors (see below), whose sum is σ = 3042564672. Its totient is φ = 380320560.

The previous prime is 1331121997. The next prime is 1331122043. The reversal of 1331122002 is 2002211331.

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, 15846649 + ... + 15846732.

It is an arithmetic number, because the mean of its divisors is an integer number (190160292).

Almost surely, 2^1331122002 is an apocalyptic number.

1331122002 is an abundant number, since it is smaller than the sum of its proper divisors (1711442670).

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

1331122002 is a wasteful number, since it uses less digits than its factorization.

1331122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31693393.

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

The square root of 1331122002 is about 36484.5447004619. The cubic root of 1331122002 is about 1100.0336083395.

Adding to 1331122002 its reverse (2002211331), we get a palindrome (3333333333).

The spelling of 1331122002 in words is "one billion, three hundred thirty-one million, one hundred twenty-two thousand, two".