20101120212212 has 24 divisors (see below), whose sum is σ = 39104908803072. Its totient is φ = 8978167836000.

The previous prime is 20101120212203. The next prime is 20101120212253. The reversal of 20101120212212 is 21221202110102.

It is a congruent number.

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, 6234837164 + ... + 6234840387.

It is an arithmetic number, because the mean of its divisors is an integer number (1629371200128).

Almost surely, 2^{20101120212212} is an apocalyptic number.

It is an amenable number.

20101120212212 is a deficient number, since it is larger than the sum of its proper divisors (19003788590860).

20101120212212 is a wasteful number, since it uses less digits than its factorization.

20101120212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12469677599 (or 12469677597 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20101120212212 its reverse (21221202110102), we get a palindrome (41322322322314).

The spelling of 20101120212212 in words is "twenty trillion, one hundred one billion, one hundred twenty million, two hundred twelve thousand, two hundred twelve".