1231010122201 has 8 divisors (see below), whose sum is σ = 1235401569864. Its totient is φ = 1226625811200.

The previous prime is 1231010122183. The next prime is 1231010122213. The reversal of 1231010122201 is 1022210101321.

It can be written as a sum of positive squares in 4 ways, for example, as 214994505625 + 1016015616576 = 463675^2 + 1007976^2 .

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 1231010122201 - 2⁷ = 1231010122073 is a prime.

It is a super-2 number, since 2×1231010122201² (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 (1231010122271) 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, 1438450 + ... + 2128651.

It is an arithmetic number, because the mean of its divisors is an integer number (154425196233).

Almost surely, 2^{1231010122201} is an apocalyptic number.

It is an amenable number.

1231010122201 is a deficient number, since it is larger than the sum of its proper divisors (4391447663).

1231010122201 is an equidigital number, since it uses as much as digits as its factorization.

1231010122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3568331.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1231010122201 its reverse (1022210101321), we get a palindrome (2253220223522).

The spelling of 1231010122201 in words is "one trillion, two hundred thirty-one billion, ten million, one hundred twenty-two thousand, two hundred one".