2012221121222 has 8 divisors (see below), whose sum is σ = 3250511042016. Its totient is φ = 928717440552.

The previous prime is 2012221121213. The next prime is 2012221121227. The reversal of 2012221121222 is 2221211222102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2012221121194 and 2012221121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221121227) 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, 38696559998 + ... + 38696560049.

It is an arithmetic number, because the mean of its divisors is an integer number (406313880252).

Almost surely, 2^{2012221121222} is an apocalyptic number.

2012221121222 is a deficient number, since it is larger than the sum of its proper divisors (1238289920794).

2012221121222 is a wasteful number, since it uses less digits than its factorization.

2012221121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77393120062.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2012221121222 its reverse (2221211222102), we get a palindrome (4233432343324).

The spelling of 2012221121222 in words is "two trillion, twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".