20100011212 has 24 divisors (see below), whose sum is σ = 35600674032. Its totient is φ = 9928824000.

The previous prime is 20100011177. The next prime is 20100011221. The reversal of 20100011212 is 21211000102.

It is a super-4 number, since 4×20100011212⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132283 + ... + 240205.

It is an arithmetic number, because the mean of its divisors is an integer number (1483361418).

Almost surely, 2^20100011212 is an apocalyptic number.

It is an amenable number.

20100011212 is a deficient number, since it is larger than the sum of its proper divisors (15500662820).

20100011212 is a wasteful number, since it uses less digits than its factorization.

20100011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108489 (or 108487 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20100011212 its reverse (21211000102), we get a palindrome (41311011314).

It can be divided in two parts, 201000 and 11212, that added together give a palindrome (212212).

The spelling of 20100011212 in words is "twenty billion, one hundred million, eleven thousand, two hundred twelve".