2102245040421 has 16 divisors (see below), whose sum is σ = 3136843124800. Its totient is φ = 1391413981104.

The previous prime is 2102245040419. The next prime is 2102245040461. The reversal of 2102245040421 is 1240405422012.

It is a happy number.

2102245040421 is a `hidden beast` number, since 2 + 10 + 2 + 245 + 0 + 404 + 2 + 1 = 666.

It is not a de Polignac number, because 2102245040421 - 2¹ = 2102245040419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102245040411) 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, 280071526 + ... + 280079031.

It is an arithmetic number, because the mean of its divisors is an integer number (196052695300).

Almost surely, 2^{2102245040421} is an apocalyptic number.

It is an amenable number.

2102245040421 is a deficient number, since it is larger than the sum of its proper divisors (1034598084379).

2102245040421 is a wasteful number, since it uses less digits than its factorization.

2102245040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560150705 (or 560150699 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The spelling of 2102245040421 in words is "two trillion, one hundred two billion, two hundred forty-five million, forty thousand, four hundred twenty-one".