2001102122212 has 12 divisors (see below), whose sum is σ = 3541276228140. Its totient is φ = 989308914176.

The previous prime is 2001102122183. The next prime is 2001102122293. The reversal of 2001102122212 is 2122212011002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 952841490496 + 1048260631716 = 976136^2 + 1023846^2 .

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, 2810536333 + ... + 2810537044.

It is an arithmetic number, because the mean of its divisors is an integer number (295106352345).

Almost surely, 2^{2001102122212} is an apocalyptic number.

It is an amenable number.

2001102122212 is a deficient number, since it is larger than the sum of its proper divisors (1540174105928).

2001102122212 is a wasteful number, since it uses less digits than its factorization.

2001102122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621073470 (or 5621073468 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2001102122212 its reverse (2122212011002), we get a palindrome (4123314133214).

The spelling of 2001102122212 in words is "two trillion, one billion, one hundred two million, one hundred twenty-two thousand, two hundred twelve".