20010101212 has 12 divisors (see below), whose sum is σ = 35153934480. Its totient is φ = 9966119936.

The previous prime is 20010101207. The next prime is 20010101227. The reversal of 20010101212 is 21210101002.

It is a congruent number.

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, 9731512 + ... + 9733567.

It is an arithmetic number, because the mean of its divisors is an integer number (2929494540).

Almost surely, 2^20010101212 is an apocalyptic number.

It is an amenable number.

20010101212 is a deficient number, since it is larger than the sum of its proper divisors (15143833268).

20010101212 is a wasteful number, since it uses less digits than its factorization.

20010101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19465340 (or 19465338 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010101212 its reverse (21210101002), we get a palindrome (41220202214).

The spelling of 20010101212 in words is "twenty billion, ten million, one hundred one thousand, two hundred twelve".