20012211210 has 32 divisors (see below), whose sum is σ = 48049303680. Its totient is φ = 5334367808.

The previous prime is 20012211203. The next prime is 20012211217. The reversal of 20012211210 is 1211221002.

It is an interprime number because it is at equal distance from previous prime (20012211203) and next prime (20012211217).

It is not an unprimeable number, because it can be changed into a prime (20012211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64965 + ... + 210344.

It is an arithmetic number, because the mean of its divisors is an integer number (1501540740).

Almost surely, 2^20012211210 is an apocalyptic number.

20012211210 is an abundant number, since it is smaller than the sum of its proper divisors (28037092470).

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

20012211210 is a wasteful number, since it uses less digits than its factorization.

20012211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277742.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20012211210 its reverse (1211221002), we get a palindrome (21223432212).

The spelling of 20012211210 in words is "twenty billion, twelve million, two hundred eleven thousand, two hundred ten".