2123010221202 has 72 divisors (see below), whose sum is σ = 4981481118900. Its totient is φ = 653158831104.

The previous prime is 2123010221191. The next prime is 2123010221209. The reversal of 2123010221202 is 2021220103212.

2123010221202 is a `hidden beast` number, since 2 + 1 + 230 + 10 + 221 + 202 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 678809562201 + 1444200659001 = 823899^2 + 1201749^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2123010221209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30168874 + ... + 30239162.

Almost surely, 2^{2123010221202} is an apocalyptic number.

2123010221202 is an abundant number, since it is smaller than the sum of its proper divisors (2858470897698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123010221202 is a wasteful number, since it uses less digits than its factorization.

2123010221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80252 (or 80236 counting only the distinct ones).

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

Adding to 2123010221202 its reverse (2021220103212), we get a palindrome (4144230324414).

The spelling of 2123010221202 in words is "two trillion, one hundred twenty-three billion, ten million, two hundred twenty-one thousand, two hundred two".