2121321213032 has 64 divisors (see below), whose sum is σ = 4647884008320. Its totient is φ = 888924377088.

The previous prime is 2121321213017. The next prime is 2121321213071. The reversal of 2121321213032 is 2303121231212.

It is a junction number, because it is equal to n+sod(n) for n = 2121321212989 and 2121321213007.

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, 1901693 + ... + 2803404.

It is an arithmetic number, because the mean of its divisors is an integer number (72623187630).

Almost surely, 2^{2121321213032} is an apocalyptic number.

It is an amenable number.

2121321213032 is an abundant number, since it is smaller than the sum of its proper divisors (2526562795288).

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

2121321213032 is a wasteful number, since it uses less digits than its factorization.

2121321213032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705290 (or 4705286 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121321213032 its reverse (2303121231212), we get a palindrome (4424442444244).

The spelling of 2121321213032 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred thirteen thousand, thirty-two".