1012203132221 has 4 divisors (see below), whose sum is σ = 1018412967552. Its totient is φ = 1005993296892.

The previous prime is 1012203132167. The next prime is 1012203132253. The reversal of 1012203132221 is 1222313022101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012203132221 - 2²² = 1012198937917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012203132193 and 1012203132202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012203132821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104917421 + ... + 3104917746.

It is an arithmetic number, because the mean of its divisors is an integer number (254603241888).

Almost surely, 2^{1012203132221} is an apocalyptic number.

It is an amenable number.

1012203132221 is a deficient number, since it is larger than the sum of its proper divisors (6209835331).

1012203132221 is an equidigital number, since it uses as much as digits as its factorization.

1012203132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209835330.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1012203132221 its reverse (1222313022101), we get a palindrome (2234516154322).

The spelling of 1012203132221 in words is "one trillion, twelve billion, two hundred three million, one hundred thirty-two thousand, two hundred twenty-one".