20101101221212 has 96 divisors (see below), whose sum is σ = 39254205070080. Its totient is φ = 8929340352000.

The previous prime is 20101101221161. The next prime is 20101101221251. The reversal of 20101101221212 is 21212210110102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1922257488 + ... + 1922267944.

It is an arithmetic number, because the mean of its divisors is an integer number (408897969480).

Almost surely, 2^{20101101221212} is an apocalyptic number.

20101101221212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20101101221212 is a deficient number, since it is larger than the sum of its proper divisors (19153103848868).

20101101221212 is a wasteful number, since it uses less digits than its factorization.

20101101221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14803 (or 14801 counting only the distinct ones).

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

Adding to 20101101221212 its reverse (21212210110102), we get a palindrome (41313311331314).

The spelling of 20101101221212 in words is "twenty trillion, one hundred one billion, one hundred one million, two hundred twenty-one thousand, two hundred twelve".