4021321111222 has 32 divisors (see below), whose sum is σ = 6648929752320. Its totient is φ = 1815579010080.

The previous prime is 4021321111183. The next prime is 4021321111231. The reversal of 4021321111222 is 2221111231204.

4021321111222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4021321111193 and 4021321111202.

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, 7881729 + ... + 8376412.

It is an arithmetic number, because the mean of its divisors is an integer number (207779054760).

Almost surely, 2^{4021321111222} is an apocalyptic number.

4021321111222 is a deficient number, since it is larger than the sum of its proper divisors (2627608641098).

4021321111222 is a wasteful number, since it uses less digits than its factorization.

4021321111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258468.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 4021321111222 its reverse (2221111231204), we get a palindrome (6242432342426).

The spelling of 4021321111222 in words is "four trillion, twenty-one billion, three hundred twenty-one million, one hundred eleven thousand, two hundred twenty-two".