1204421222131 has 4 divisors (see below), whose sum is σ = 1210661746792. Its totient is φ = 1198180697472.

The previous prime is 1204421222101. The next prime is 1204421222153. The reversal of 1204421222131 is 1312221244021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1204421222131 - 2¹¹ = 1204421220083 is a prime.

It is a super-2 number, since 2×1204421222131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204421222096 and 1204421222105.

It is not an unprimeable number, because it can be changed into a prime (1204421222101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120262041 + ... + 3120262426.

It is an arithmetic number, because the mean of its divisors is an integer number (302665436698).

Almost surely, 2^{1204421222131} is an apocalyptic number.

1204421222131 is a deficient number, since it is larger than the sum of its proper divisors (6240524661).

1204421222131 is an equidigital number, since it uses as much as digits as its factorization.

1204421222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240524660.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1204421222131 its reverse (1312221244021), we get a palindrome (2516642466152).

The spelling of 1204421222131 in words is "one trillion, two hundred four billion, four hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-one".