2121010121010 has 32 divisors (see below), whose sum is σ = 5553190135872. Its totient is φ = 514184271680.

The previous prime is 2121010120993. The next prime is 2121010121039. The reversal of 2121010121010 is 101210101212.

2121010121010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

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, 3213651369 + ... + 3213652028.

It is an arithmetic number, because the mean of its divisors is an integer number (173537191746).

Almost surely, 2^{2121010121010} is an apocalyptic number.

2121010121010 is an abundant number, since it is smaller than the sum of its proper divisors (3432180014862).

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

2121010121010 is a wasteful number, since it uses less digits than its factorization.

2121010121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427303418.

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

Adding to 2121010121010 its reverse (101210101212), we get a palindrome (2222220222222).

The spelling of 2121010121010 in words is "two trillion, one hundred twenty-one billion, ten million, one hundred twenty-one thousand, ten".