1200021202222 has 16 divisors (see below), whose sum is σ = 1858155577344. Its totient is φ = 580637223000.

The previous prime is 1200021202213. The next prime is 1200021202223. The reversal of 1200021202222 is 2222021200021.

It is a junction number, because it is equal to n+sod(n) for n = 1200021202196 and 1200021202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200021202223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1808647 + ... + 2381437.

It is an arithmetic number, because the mean of its divisors is an integer number (116134723584).

Almost surely, 2^{1200021202222} is an apocalyptic number.

1200021202222 is a deficient number, since it is larger than the sum of its proper divisors (658134375122).

1200021202222 is a wasteful number, since it uses less digits than its factorization.

1200021202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606615.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1200021202222 its reverse (2222021200021), we get a palindrome (3422042402243).

The spelling of 1200021202222 in words is "one trillion, two hundred billion, twenty-one million, two hundred two thousand, two hundred twenty-two".