20120011211212 has 12 divisors (see below), whose sum is σ = 38410930494216. Its totient is φ = 9145459641440.

The previous prime is 20120011211191. The next prime is 20120011211249. The reversal of 20120011211212 is 21211211002102.

It is a super-2 number, since 2×20120011211212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 228636490993 + ... + 228636491080.

It is an arithmetic number, because the mean of its divisors is an integer number (3200910874518).

Almost surely, 2^{20120011211212} is an apocalyptic number.

20120011211212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20120011211212 is a deficient number, since it is larger than the sum of its proper divisors (18290919283004).

20120011211212 is a wasteful number, since it uses less digits than its factorization.

20120011211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457272982088 (or 457272982086 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20120011211212 its reverse (21211211002102), we get a palindrome (41331222213314).

The spelling of 20120011211212 in words is "twenty trillion, one hundred twenty billion, eleven million, two hundred eleven thousand, two hundred twelve".