2102012033021 has 8 divisors (see below), whose sum is σ = 2104188747960. Its totient is φ = 2099835505152.

The previous prime is 2102012032961. The next prime is 2102012033083. The reversal of 2102012033021 is 1203302102012.

It can be written as a sum of positive squares in 4 ways, for example, as 478502844121 + 1623509188900 = 691739^2 + 1274170^2 .

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 2102012033021 - 2¹⁰ = 2102012031997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102012035021) 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, 39034511 + ... + 39088323.

It is an arithmetic number, because the mean of its divisors is an integer number (263023593495).

Almost surely, 2^{2102012033021} is an apocalyptic number.

It is an amenable number.

2102012033021 is a deficient number, since it is larger than the sum of its proper divisors (2176714939).

2102012033021 is a wasteful number, since it uses less digits than its factorization.

2102012033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93535.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2102012033021 its reverse (1203302102012), we get a palindrome (3305314135033).

The spelling of 2102012033021 in words is "two trillion, one hundred two billion, twelve million, thirty-three thousand, twenty-one".