2103220212021 has 24 divisors (see below), whose sum is σ = 3136232596224. Its totient is φ = 1356808812480.

The previous prime is 2103220212019. The next prime is 2103220212043. The reversal of 2103220212021 is 1202120223012.

2103220212021 is a `hidden beast` number, since 210 + 3 + 220 + 212 + 0 + 21 = 666.

It is not a de Polignac number, because 2103220212021 - 2¹ = 2103220212019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2103220211985 and 2103220212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103220211021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3309025 + ... + 3893081.

It is an arithmetic number, because the mean of its divisors is an integer number (130676358176).

Almost surely, 2^{2103220212021} is an apocalyptic number.

It is an amenable number.

2103220212021 is a deficient number, since it is larger than the sum of its proper divisors (1033012384203).

2103220212021 is a wasteful number, since it uses less digits than its factorization.

2103220212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597001 (or 596998 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2103220212021 its reverse (1202120223012), we get a palindrome (3305340435033).

The spelling of 2103220212021 in words is "two trillion, one hundred three billion, two hundred twenty million, two hundred twelve thousand, twenty-one".