2102121202202 has 48 divisors (see below), whose sum is σ = 3778504969248. Its totient is φ = 873911475360.

The previous prime is 2102121202201. The next prime is 2102121202211. The reversal of 2102121202202 is 2022021212012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2102121202201) 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, 324473 + ... + 2075939.

It is an arithmetic number, because the mean of its divisors is an integer number (78718853526).

Almost surely, 2^{2102121202202} is an apocalyptic number.

2102121202202 is a deficient number, since it is larger than the sum of its proper divisors (1676383767046).

2102121202202 is a wasteful number, since it uses less digits than its factorization.

2102121202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751851 (or 1751844 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2102121202202 its reverse (2022021212012), we get a palindrome (4124142414214).

The spelling of 2102121202202 in words is "two trillion, one hundred two billion, one hundred twenty-one million, two hundred two thousand, two hundred two".