10212210121021 has 16 divisors (see below), whose sum is σ = 10829967266304. Its totient is φ = 9596352150784.

The previous prime is 10212210120877. The next prime is 10212210121033. The reversal of 10212210121021 is 12012101221201.

It is a cyclic number.

It is not a de Polignac number, because 10212210121021 - 2¹³ = 10212210112829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212210120986 and 10212210121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212210121121) 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, 56281575 + ... + 56462731.

It is an arithmetic number, because the mean of its divisors is an integer number (676872954144).

Almost surely, 2^{10212210121021} is an apocalyptic number.

It is an amenable number.

10212210121021 is a deficient number, since it is larger than the sum of its proper divisors (617757145283).

10212210121021 is a wasteful number, since it uses less digits than its factorization.

10212210121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186380.

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

Adding to 10212210121021 its reverse (12012101221201), we get a palindrome (22224311342222).

The spelling of 10212210121021 in words is "ten trillion, two hundred twelve billion, two hundred ten million, one hundred twenty-one thousand, twenty-one".