1210213100032 has 80 divisors (see below), whose sum is σ = 2502060561000. Its totient is φ = 584096808960.

The previous prime is 1210213099969. The next prime is 1210213100039. The reversal of 1210213100032 is 2300013120121.

It can be written as a sum of positive squares in 4 ways, for example, as 1109028034816 + 101185065216 = 1053104^2 + 318096^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1210213099979 and 1210213100015.

It is not an unprimeable number, because it can be changed into a prime (1210213100039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83750344 + ... + 83764792.

Almost surely, 2^{1210213100032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210213100032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251030280500).

1210213100032 is an abundant number, since it is smaller than the sum of its proper divisors (1291847460968).

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

1210213100032 is an equidigital number, since it uses as much as digits as its factorization.

1210213100032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20137 (or 20121 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1210213100032 its reverse (2300013120121), we get a palindrome (3510226220153).

The spelling of 1210213100032 in words is "one trillion, two hundred ten billion, two hundred thirteen million, one hundred thousand, thirty-two".