20202101212 has 12 divisors (see below), whose sum is σ = 35485105320. Its totient is φ = 10063499696.

The previous prime is 20202101167. The next prime is 20202101237. The reversal of 20202101212 is 21210120202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20202101192 and 20202101201.

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 3 ways as a sum of consecutive naturals, for example, 9386518 + ... + 9388669.

It is an arithmetic number, because the mean of its divisors is an integer number (2957092110).

Almost surely, 2^20202101212 is an apocalyptic number.

It is an amenable number.

20202101212 is a deficient number, since it is larger than the sum of its proper divisors (15283004108).

20202101212 is a wasteful number, since it uses less digits than its factorization.

20202101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18775460 (or 18775458 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20202101212 its reverse (21210120202), we get a palindrome (41412221414).

The spelling of 20202101212 in words is "twenty billion, two hundred two million, one hundred one thousand, two hundred twelve".