2010105521421 has 16 divisors (see below), whose sum is σ = 2689432426560. Its totient is φ = 1335431784960.

The previous prime is 2010105521399. The next prime is 2010105521467. The reversal of 2010105521421 is 1241255010102.

It is a happy number.

It is not a de Polignac number, because 2010105521421 - 2¹⁹ = 2010104997133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2010105521391 and 2010105521400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010105521521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189501 + ... + 2013981.

It is an arithmetic number, because the mean of its divisors is an integer number (168089526660).

Almost surely, 2^{2010105521421} is an apocalyptic number.

It is an amenable number.

2010105521421 is a deficient number, since it is larger than the sum of its proper divisors (679326905139).

2010105521421 is a wasteful number, since it uses less digits than its factorization.

2010105521421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825756.

The product of its (nonzero) digits is 800, while the sum is 24.

The spelling of 2010105521421 in words is "two trillion, ten billion, one hundred five million, five hundred twenty-one thousand, four hundred twenty-one".