1202402442120 has 128 divisors (see below), whose sum is σ = 3936331728000. Its totient is φ = 291402874880.

The previous prime is 1202402442119. The next prime is 1202402442139. The reversal of 1202402442120 is 212442042021.

It is a happy number.

It is a super-2 number, since 2×1202402442120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4257466 + ... + 4531094.

It is an arithmetic number, because the mean of its divisors is an integer number (30752591625).

Almost surely, 2^{1202402442120} is an apocalyptic number.

1202402442120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202402442120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968165864000).

1202402442120 is an abundant number, since it is smaller than the sum of its proper divisors (2733929285880).

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

1202402442120 is a wasteful number, since it uses less digits than its factorization.

1202402442120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276983 (or 276979 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1202402442120 its reverse (212442042021), we get a palindrome (1414844484141).

The spelling of 1202402442120 in words is "one trillion, two hundred two billion, four hundred two million, four hundred forty-two thousand, one hundred twenty".