10210120211021 has 8 divisors (see below), whose sum is σ = 10217053243320. Its totient is φ = 10203187857408.

The previous prime is 10210120210981. The next prime is 10210120211023. The reversal of 10210120211021 is 12011202101201.

It can be written as a sum of positive squares in 4 ways, for example, as 58160557225 + 10151959653796 = 241165^2 + 3186214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10210120211021 - 2²² = 10210116016717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210120210987 and 10210120211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210120211023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31987205 + ... + 32304821.

It is an arithmetic number, because the mean of its divisors is an integer number (1277131655415).

Almost surely, 2^{10210120211021} is an apocalyptic number.

It is an amenable number.

10210120211021 is a deficient number, since it is larger than the sum of its proper divisors (6933032299).

10210120211021 is a wasteful number, since it uses less digits than its factorization.

10210120211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339343.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10210120211021 its reverse (12011202101201), we get a palindrome (22221322312222).

The spelling of 10210120211021 in words is "ten trillion, two hundred ten billion, one hundred twenty million, two hundred eleven thousand, twenty-one".