1230221132131 has 4 divisors (see below), whose sum is σ = 1235640608712. Its totient is φ = 1224801655552.

The previous prime is 1230221132053. The next prime is 1230221132183. The reversal of 1230221132131 is 1312311220321.

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 1230221132131 - 2⁷ = 1230221132003 is a prime.

It is a super-2 number, since 2×1230221132131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230221132831) 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, 2709737950 + ... + 2709738403.

It is an arithmetic number, because the mean of its divisors is an integer number (308910152178).

Almost surely, 2^{1230221132131} is an apocalyptic number.

1230221132131 is a deficient number, since it is larger than the sum of its proper divisors (5419476581).

1230221132131 is an equidigital number, since it uses as much as digits as its factorization.

1230221132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419476580.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1230221132131 its reverse (1312311220321), we get a palindrome (2542532352452).

The spelling of 1230221132131 in words is "one trillion, two hundred thirty billion, two hundred twenty-one million, one hundred thirty-two thousand, one hundred thirty-one".