10012211202121 has 16 divisors (see below), whose sum is σ = 10467064964736. Its totient is φ = 9558989013376.

The previous prime is 10012211202073. The next prime is 10012211202163. The reversal of 10012211202121 is 12120211221001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10012211202121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012211202095 and 10012211202104.

It is not an unprimeable number, because it can be changed into a prime (10012211202181) 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, 167698551 + ... + 167758243.

It is an arithmetic number, because the mean of its divisors is an integer number (654191560296).

Almost surely, 2^{10012211202121} is an apocalyptic number.

It is an amenable number.

10012211202121 is a deficient number, since it is larger than the sum of its proper divisors (454853762615).

10012211202121 is a wasteful number, since it uses less digits than its factorization.

10012211202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73232.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10012211202121 its reverse (12120211221001), we get a palindrome (22132422423122).

The spelling of 10012211202121 in words is "ten trillion, twelve billion, two hundred eleven million, two hundred two thousand, one hundred twenty-one".