2121201110010 has 64 divisors (see below), whose sum is σ = 5230617472512. Its totient is φ = 550140074496.

The previous prime is 2121201109981. The next prime is 2121201110051. The reversal of 2121201110010 is 100111021212.

It is a super-2 number, since 2×2121201110010² (a number of 25 digits) contains 22 as substring.

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, 2325694 + ... + 3106646.

It is an arithmetic number, because the mean of its divisors is an integer number (81728398008).

Almost surely, 2^{2121201110010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121201110010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2615308736256).

2121201110010 is an abundant number, since it is smaller than the sum of its proper divisors (3109416362502).

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

2121201110010 is a wasteful number, since it uses less digits than its factorization.

2121201110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783447.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2121201110010 its reverse (100111021212), we get a palindrome (2221312131222).

The spelling of 2121201110010 in words is "two trillion, one hundred twenty-one billion, two hundred one million, one hundred ten thousand, ten".