10211110021 has 8 divisors (see below), whose sum is σ = 11834204544. Its totient is φ = 8629106640.

The previous prime is 10211109971. The next prime is 10211110037. The reversal of 10211110021 is 12001111201.

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

It is not a de Polignac number, because 10211110021 - 2²⁵ = 10177555589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211120021) 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, 10272250 + ... + 10273243.

It is an arithmetic number, because the mean of its divisors is an integer number (1479275568).

Almost surely, 2^10211110021 is an apocalyptic number.

It is an amenable number.

10211110021 is a deficient number, since it is larger than the sum of its proper divisors (1623094523).

10211110021 is an equidigital number, since it uses as much as digits as its factorization.

10211110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20545571.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10211110021 its reverse (12001111201), we get a palindrome (22212221222).

The spelling of 10211110021 in words is "ten billion, two hundred eleven million, one hundred ten thousand, twenty-one".