10202121120212 has 24 divisors (see below), whose sum is σ = 20529421649856. Its totient is φ = 4345513463808.

The previous prime is 10202121120197. The next prime is 10202121120239. The reversal of 10202121120212 is 21202112120201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117668653 + ... + 1117677780.

It is an arithmetic number, because the mean of its divisors is an integer number (855392568744).

Almost surely, 2^{10202121120212} is an apocalyptic number.

It is an amenable number.

10202121120212 is an abundant number, since it is smaller than the sum of its proper divisors (10327300529644).

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

10202121120212 is a wasteful number, since it uses less digits than its factorization.

10202121120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235346607 (or 2235346605 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10202121120212 its reverse (21202112120201), we get a palindrome (31404233240413).

The spelling of 10202121120212 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".