12001022222012 has 6 divisors (see below), whose sum is σ = 21001788888528. Its totient is φ = 6000511111004.

The previous prime is 12001022221997. The next prime is 12001022222029. The reversal of 12001022222012 is 21022222010021.

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 as a sum of consecutive naturals, namely, 1500127777748 + ... + 1500127777755.

It is an arithmetic number, because the mean of its divisors is an integer number (3500298148088).

Almost surely, 2^{12001022222012} is an apocalyptic number.

It is an amenable number.

12001022222012 is a deficient number, since it is larger than the sum of its proper divisors (9000766666516).

12001022222012 is a wasteful number, since it uses less digits than its factorization.

12001022222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000255555507 (or 3000255555505 counting only the distinct ones).

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

Adding to 12001022222012 its reverse (21022222010021), we get a palindrome (33023244232033).

The spelling of 12001022222012 in words is "twelve trillion, one billion, twenty-two million, two hundred twenty-two thousand, twelve".