20120012210 has 32 divisors (see below), whose sum is σ = 38518405632. Its totient is φ = 7540611840.

The previous prime is 20120012207. The next prime is 20120012219. The reversal of 20120012210 is 1221002102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20120012191 and 20120012200.

It is not an unprimeable number, because it can be changed into a prime (20120012219) 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 15 ways as a sum of consecutive naturals, for example, 227456 + ... + 303275.

It is an arithmetic number, because the mean of its divisors is an integer number (1203700176).

Almost surely, 2^20120012210 is an apocalyptic number.

20120012210 is a deficient number, since it is larger than the sum of its proper divisors (18398393422).

20120012210 is a wasteful number, since it uses less digits than its factorization.

20120012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530978.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20120012210 its reverse (1221002102), we get a palindrome (21341014312).

The spelling of 20120012210 in words is "twenty billion, one hundred twenty million, twelve thousand, two hundred ten".