20101211102212 has 24 divisors (see below), whose sum is σ = 35851189622976. Its totient is φ = 9858123601248.

The previous prime is 20101211102101. The next prime is 20101211102237. The reversal of 20101211102212 is 21220111210102.

It is a super-2 number, since 2×20101211102212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12955858 + ... + 14424169.

It is an arithmetic number, because the mean of its divisors is an integer number (1493799567624).

Almost surely, 2^{20101211102212} is an apocalyptic number.

It is an amenable number.

20101211102212 is a deficient number, since it is larger than the sum of its proper divisors (15749978520764).

20101211102212 is a wasteful number, since it uses less digits than its factorization.

20101211102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27383547 (or 27383545 counting only the distinct ones).

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

Adding to 20101211102212 its reverse (21220111210102), we get a palindrome (41321322312314).

The spelling of 20101211102212 in words is "twenty trillion, one hundred one billion, two hundred eleven million, one hundred two thousand, two hundred twelve".