1200022022221 has 8 divisors (see below), whose sum is σ = 1309122950688. Its totient is φ = 1090922430000.

The previous prime is 1200022022161. The next prime is 1200022022239. The reversal of 1200022022221 is 1222202200021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200022022221 - 2⁷ = 1200022022093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200022022195 and 1200022022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200022022921) 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, 2932531 + ... + 3316591.

It is an arithmetic number, because the mean of its divisors is an integer number (163640368836).

Almost surely, 2^{1200022022221} is an apocalyptic number.

1200022022221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200022022221 is a deficient number, since it is larger than the sum of its proper divisors (109100928467).

1200022022221 is a wasteful number, since it uses less digits than its factorization.

1200022022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668123.

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

Adding to 1200022022221 its reverse (1222202200021), we get a palindrome (2422224222242).

The spelling of 1200022022221 in words is "one trillion, two hundred billion, twenty-two million, twenty-two thousand, two hundred twenty-one".