12101120210 has 32 divisors (see below), whose sum is σ = 22120785072. Its totient is φ = 4765409280.

The previous prime is 12101120191. The next prime is 12101120231. The reversal of 12101120210 is 1202110121.

It can be written as a sum of positive squares in 8 ways, for example, as 1165607881 + 10935512329 = 34141^2 + 104573^2 .

It is a super-2 number, since 2×12101120210² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12101120191 and 12101120200.

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, 391730 + ... + 421490.

Almost surely, 2^12101120210 is an apocalyptic number.

12101120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101120210 is a deficient number, since it is larger than the sum of its proper divisors (10019664862).

12101120210 is a wasteful number, since it uses less digits than its factorization.

12101120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12101120210 its reverse (1202110121), we get a palindrome (13303230331).

The spelling of 12101120210 in words is "twelve billion, one hundred one million, one hundred twenty thousand, two hundred ten".