210012101021021 has 16 divisors (see below), whose sum is σ = 230435664803904. Its totient is φ = 190220880605184.

The previous prime is 210012101021003. The next prime is 210012101021033. The reversal of 210012101021021 is 120120101210012.

It is not a de Polignac number, because 210012101021021 - 2⁴² = 205614054509917 is a prime.

It is a super-3 number, since 3×210012101021021³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210012101020987 and 210012101021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012101021071) 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, 468873575 + ... + 469321268.

It is an arithmetic number, because the mean of its divisors is an integer number (14402229050244).

Almost surely, 2^{210012101021021} is an apocalyptic number.

It is an amenable number.

210012101021021 is a deficient number, since it is larger than the sum of its proper divisors (20423563782883).

210012101021021 is a wasteful number, since it uses less digits than its factorization.

210012101021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938195180.

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

Adding to 210012101021021 its reverse (120120101210012), we get a palindrome (330132202231033).

The spelling of 210012101021021 in words is "two hundred ten trillion, twelve billion, one hundred one million, twenty-one thousand, twenty-one".