10212021121012 has 12 divisors (see below), whose sum is σ = 17984865223780. Its totient is φ = 5073488199936.

The previous prime is 10212021121009. The next prime is 10212021121019. The reversal of 10212021121012 is 21012112021201.

It can be written as a sum of positive squares in 2 ways, for example, as 7073610459876 + 3138410661136 = 2659626^2 + 1771556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212021121019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8130589437 + ... + 8130590692.

Almost surely, 2^{10212021121012} is an apocalyptic number.

It is an amenable number.

10212021121012 is a deficient number, since it is larger than the sum of its proper divisors (7772844102768).

10212021121012 is a wasteful number, since it uses less digits than its factorization.

10212021121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16261180290 (or 16261180288 counting only the distinct ones).

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

Adding to 10212021121012 its reverse (21012112021201), we get a palindrome (31224133142213).

The spelling of 10212021121012 in words is "ten trillion, two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, twelve".