2101224012 has 24 divisors (see below), whose sum is σ = 4906101312. Its totient is φ = 699944400.

The previous prime is 2101224011. The next prime is 2101224019. The reversal of 2101224012 is 2104221012.

It is a super-2 number, since 2×2101224012² = 8830284697210752288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101223982 and 2101224000.

It is not an unprimeable number, because it can be changed into a prime (2101224011) 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, 38814 + ... + 75557.

It is an arithmetic number, because the mean of its divisors is an integer number (204420888).

Almost surely, 2^2101224012 is an apocalyptic number.

It is an amenable number.

2101224012 is an abundant number, since it is smaller than the sum of its proper divisors (2804877300).

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

2101224012 is a wasteful number, since it uses less digits than its factorization.

2101224012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115909 (or 115907 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2101224012 is about 45839.1100698956. The cubic root of 2101224012 is about 1280.8279173412.

Adding to 2101224012 its reverse (2104221012), we get a palindrome (4205445024).

The spelling of 2101224012 in words is "two billion, one hundred one million, two hundred twenty-four thousand, twelve".