10211212002128 has 40 divisors (see below), whose sum is σ = 19888194931200. Its totient is φ = 5078843320320.

The previous prime is 10211212002127. The next prime is 10211212002139. The reversal of 10211212002128 is 82120021211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211212002127) 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 7 ways as a sum of consecutive naturals, for example, 230801 + ... + 4525007.

It is an arithmetic number, because the mean of its divisors is an integer number (497204873280).

Almost surely, 2^{10211212002128} is an apocalyptic number.

It is an amenable number.

10211212002128 is a deficient number, since it is larger than the sum of its proper divisors (9676982929072).

10211212002128 is a wasteful number, since it uses less digits than its factorization.

10211212002128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294995 (or 4294989 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 10211212002128 its reverse (82120021211201), we get a palindrome (92331233213329).

The spelling of 10211212002128 in words is "ten trillion, two hundred eleven billion, two hundred twelve million, two thousand, one hundred twenty-eight".