2101122010 has 64 divisors (see below), whose sum is σ = 4164048000. Its totient is φ = 758621952.

The previous prime is 2101121959. The next prime is 2101122017. The reversal of 2101122010 is 102211012.

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

It is not an unprimeable number, because it can be changed into a prime (2101122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1296981 + ... + 1298599.

It is an arithmetic number, because the mean of its divisors is an integer number (65063250).

Almost surely, 2^2101122010 is an apocalyptic number.

2101122010 is a deficient number, since it is larger than the sum of its proper divisors (2062925990).

2101122010 is a wasteful number, since it uses less digits than its factorization.

2101122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855.

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

The square root of 2101122010 is about 45837.9974475325. The cubic root of 2101122010 is about 1280.8071914655.

Adding to 2101122010 its reverse (102211012), we get a palindrome (2203333022).

The spelling of 2101122010 in words is "two billion, one hundred one million, one hundred twenty-two thousand, ten".