2201222001212 has 48 divisors (see below), whose sum is σ = 4213853327712. Its totient is φ = 999989867520.

The previous prime is 2201222001179. The next prime is 2201222001229. The reversal of 2201222001212 is 2121002221022.

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 15 ways as a sum of consecutive naturals, for example, 1273328 + ... + 2454344.

It is an arithmetic number, because the mean of its divisors is an integer number (87788610994).

Almost surely, 2^{2201222001212} is an apocalyptic number.

It is an amenable number.

2201222001212 is a deficient number, since it is larger than the sum of its proper divisors (2012631326500).

2201222001212 is a wasteful number, since it uses less digits than its factorization.

2201222001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181598 (or 1181596 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2201222001212 its reverse (2121002221022), we get a palindrome (4322224222234).

The spelling of 2201222001212 in words is "two trillion, two hundred one billion, two hundred twenty-two million, one thousand, two hundred twelve".