1331102122002 has 24 divisors (see below), whose sum is σ = 2916459709020. Its totient is φ = 438715305600.

The previous prime is 1331102121977. The next prime is 1331102122003. The reversal of 1331102122002 is 2002212011331.

It can be written as a sum of positive squares in 2 ways, for example, as 1221752198241 + 109349923761 = 1105329^2 + 330681^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1331102122003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415448499 + ... + 415451702.

Almost surely, 2^{1331102122002} is an apocalyptic number.

1331102122002 is an abundant number, since it is smaller than the sum of its proper divisors (1585357587018).

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

1331102122002 is a wasteful number, since it uses less digits than its factorization.

1331102122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830900298 (or 830900295 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1331102122002 its reverse (2002212011331), we get a palindrome (3333314133333).

The spelling of 1331102122002 in words is "one trillion, three hundred thirty-one billion, one hundred two million, one hundred twenty-two thousand, two".