2021012110 has 16 divisors (see below), whose sum is σ = 3917654496. Its totient is φ = 746219808.

The previous prime is 2021012107. The next prime is 2021012111. The reversal of 2021012110 is 112101202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021012111) 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, 7772994 + ... + 7773253.

It is an arithmetic number, because the mean of its divisors is an integer number (244853406).

Almost surely, 2^2021012110 is an apocalyptic number.

2021012110 is a deficient number, since it is larger than the sum of its proper divisors (1896642386).

2021012110 is a wasteful number, since it uses less digits than its factorization.

2021012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546267.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2021012110 is about 44955.6682744234. The cubic root of 2021012110 is about 1264.3179542324.

Adding to 2021012110 its reverse (112101202), we get a palindrome (2133113312).

The spelling of 2021012110 in words is "two billion, twenty-one million, twelve thousand, one hundred ten".