20012442210 has 24 divisors (see below), whose sum is σ = 52032349980. Its totient is φ = 5336651232.

The previous prime is 20012442167. The next prime is 20012442217. The reversal of 20012442210 is 1224421002.

20012442210 is a `hidden beast` number, since 2 + 0 + 0 + 12 + 442 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19307380401 + 705061809 = 138951^2 + 26553^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20012442217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111180145 + ... + 111180324.

Almost surely, 2^20012442210 is an apocalyptic number.

20012442210 is an abundant number, since it is smaller than the sum of its proper divisors (32019907770).

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

20012442210 is a wasteful number, since it uses less digits than its factorization.

20012442210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222360482 (or 222360479 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20012442210 its reverse (1224421002), we get a palindrome (21236863212).

The spelling of 20012442210 in words is "twenty billion, twelve million, four hundred forty-two thousand, two hundred ten".