20101011212 has 12 divisors (see below), whose sum is σ = 35238379176. Its totient is φ = 10032902880.

The previous prime is 20101011173. The next prime is 20101011257. The reversal of 20101011212 is 21211010102.

It is a junction number, because it is equal to n+sod(n) for n = 20101011193 and 20101011202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4398113 + ... + 4402680.

It is an arithmetic number, because the mean of its divisors is an integer number (2936531598).

Almost surely, 2^20101011212 is an apocalyptic number.

It is an amenable number.

20101011212 is a deficient number, since it is larger than the sum of its proper divisors (15137367964).

20101011212 is a wasteful number, since it uses less digits than its factorization.

20101011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8801368 (or 8801366 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20101011212 its reverse (21211010102), we get a palindrome (41312021314).

The spelling of 20101011212 in words is "twenty billion, one hundred one million, eleven thousand, two hundred twelve".