1202131216 has 80 divisors (see below), whose sum is σ = 2880440640. Its totient is φ = 477826560.

The previous prime is 1202131201. The next prime is 1202131253. The reversal of 1202131216 is 6121312021.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1202131193 and 1202131202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29646 + ... + 57298.

It is an arithmetic number, because the mean of its divisors is an integer number (36005508).

Almost surely, 2^1202131216 is an apocalyptic number.

1202131216 is a gapful number since it is divisible by the number (16) 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 1202131216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440220320).

1202131216 is an abundant number, since it is smaller than the sum of its proper divisors (1678309424).

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

1202131216 is a wasteful number, since it uses less digits than its factorization.

1202131216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27704 (or 27698 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1202131216 is about 34671.7639585874. The cubic root of 1202131216 is about 1063.2872957164.

Adding to 1202131216 its reverse (6121312021), we get a palindrome (7323443237).

The spelling of 1202131216 in words is "one billion, two hundred two million, one hundred thirty-one thousand, two hundred sixteen".