10201212021021 has 48 divisors (see below), whose sum is σ = 15985209752064. Its totient is φ = 5769342917856.

The previous prime is 10201212020983. The next prime is 10201212021073. The reversal of 10201212021021 is 12012021210201.

It is not a de Polignac number, because 10201212021021 - 2⁶ = 10201212020957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201212021421) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 16414866 + ... + 17024988.

It is an arithmetic number, because the mean of its divisors is an integer number (333025203168).

Almost surely, 2^{10201212021021} is an apocalyptic number.

It is an amenable number.

10201212021021 is a deficient number, since it is larger than the sum of its proper divisors (5783997731043).

10201212021021 is a wasteful number, since it uses less digits than its factorization.

10201212021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611310 (or 611303 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10201212021021 its reverse (12012021210201), we get a palindrome (22213233231222).

The spelling of 10201212021021 in words is "ten trillion, two hundred one billion, two hundred twelve million, twenty-one thousand, twenty-one".