20101002212 has 12 divisors (see below), whose sum is σ = 35183261820. Its totient is φ = 10048641696.

The previous prime is 20101002209. The next prime is 20101002217. The reversal of 20101002212 is 21220010102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13001928676 + 7099073536 = 114026^2 + 84256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20101002193 and 20101002202.

It is not an unprimeable number, because it can be changed into a prime (20101002217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440387 + ... + 483882.

It is an arithmetic number, because the mean of its divisors is an integer number (2931938485).

Almost surely, 2^20101002212 is an apocalyptic number.

It is an amenable number.

20101002212 is a deficient number, since it is larger than the sum of its proper divisors (15082259608).

20101002212 is a wasteful number, since it uses less digits than its factorization.

20101002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929710 (or 929708 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20101002212 its reverse (21220010102), we get a palindrome (41321012314).

The spelling of 20101002212 in words is "twenty billion, one hundred one million, two thousand, two hundred twelve".