2201002121212 has 12 divisors (see below), whose sum is σ = 3851764313040. Its totient is φ = 1100498031776.

The previous prime is 2201002121209. The next prime is 2201002121293. The reversal of 2201002121212 is 2121212001022.

It is a happy number.

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, 1966089 + ... + 2875327.

It is an arithmetic number, because the mean of its divisors is an integer number (320980359420).

Almost surely, 2^{2201002121212} is an apocalyptic number.

It is an amenable number.

2201002121212 is a deficient number, since it is larger than the sum of its proper divisors (1650762191828).

2201002121212 is a wasteful number, since it uses less digits than its factorization.

2201002121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514420 (or 1514418 counting only the distinct ones).

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

Adding to 2201002121212 its reverse (2121212001022), we get a palindrome (4322214122234).

The spelling of 2201002121212 in words is "two trillion, two hundred one billion, two million, one hundred twenty-one thousand, two hundred twelve".