2121013010 has 8 divisors (see below), whose sum is σ = 3817823436. Its totient is φ = 848405200.

The previous prime is 2121012979. The next prime is 2121013021. The reversal of 2121013010 is 103101212.

It can be written as a sum of positive squares in 2 ways, for example, as 2100663889 + 20349121 = 45833^2 + 4511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2121012982 and 2121013000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106050641 + ... + 106050660.

Almost surely, 2^2121013010 is an apocalyptic number.

2121013010 is a deficient number, since it is larger than the sum of its proper divisors (1696810426).

2121013010 is a wasteful number, since it uses less digits than its factorization.

2121013010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212101308.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2121013010 is about 46054.4570047243. The cubic root of 2121013010 is about 1284.8362390796.

Adding to 2121013010 its reverse (103101212), we get a palindrome (2224114222).

The spelling of 2121013010 in words is "two billion, one hundred twenty-one million, thirteen thousand, ten".