2103220131021 has 12 divisors (see below), whose sum is σ = 3038007462048. Its totient is φ = 1402136217864.

The previous prime is 2103220131017. The next prime is 2103220131079. The reversal of 2103220131021 is 1201310223012.

2103220131021 is a `hidden beast` number, since 2 + 10 + 322 + 0 + 1 + 310 + 21 = 666.

It is not a de Polignac number, because 2103220131021 - 2² = 2103220131017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103220130985 and 2103220131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103220131821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500086 + ... + 2111048.

It is an arithmetic number, because the mean of its divisors is an integer number (253167288504).

Almost surely, 2^{2103220131021} is an apocalyptic number.

It is an amenable number.

2103220131021 is a deficient number, since it is larger than the sum of its proper divisors (934787331027).

2103220131021 is a wasteful number, since it uses less digits than its factorization.

2103220131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756032 (or 1756029 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2103220131021 its reverse (1201310223012), we get a palindrome (3304530354033).

The spelling of 2103220131021 in words is "two trillion, one hundred three billion, two hundred twenty million, one hundred thirty-one thousand, twenty-one".