1200222184121 has 8 divisors (see below), whose sum is σ = 1200976541160. Its totient is φ = 1199468003328.

The previous prime is 1200222184079. The next prime is 1200222184127. The reversal of 1200222184121 is 1214812220021.

It can be written as a sum of positive squares in 4 ways, for example, as 88116954025 + 1112105230096 = 296845^2 + 1054564^2 .

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 1200222184121 - 2¹⁴ = 1200222167737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200222184127) 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, 15204065 + ... + 15282801.

It is an arithmetic number, because the mean of its divisors is an integer number (150122067645).

Almost surely, 2^{1200222184121} is an apocalyptic number.

It is an amenable number.

1200222184121 is a deficient number, since it is larger than the sum of its proper divisors (754357039).

1200222184121 is an equidigital number, since it uses as much as digits as its factorization.

1200222184121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88123.

The product of its (nonzero) digits is 1024, while the sum is 26.

The spelling of 1200222184121 in words is "one trillion, two hundred billion, two hundred twenty-two million, one hundred eighty-four thousand, one hundred twenty-one".