10211112021 has 8 divisors (see below), whose sum is σ = 14852526624. Its totient is φ = 6188552720.

The previous prime is 10211111987. The next prime is 10211112029. The reversal of 10211112021 is 12021111201.

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 10211112021 - 2¹³ = 10211103829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10211111988 and 10211112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211112029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154713786 + ... + 154713851.

It is an arithmetic number, because the mean of its divisors is an integer number (1856565828).

Almost surely, 2^10211112021 is an apocalyptic number.

10211112021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10211112021 is a deficient number, since it is larger than the sum of its proper divisors (4641414603).

10211112021 is a wasteful number, since it uses less digits than its factorization.

10211112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309427651.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10211112021 its reverse (12021111201), we get a palindrome (22232223222).

The spelling of 10211112021 in words is "ten billion, two hundred eleven million, one hundred twelve thousand, twenty-one".