10021211101 has 4 divisors (see below), whose sum is σ = 10932230304. Its totient is φ = 9110191900.

The previous prime is 10021211099. The next prime is 10021211107. The reversal of 10021211101 is 10111212001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10021211101 - 2¹ = 10021211099 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 (10021211107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455509585 + ... + 455509606.

It is an arithmetic number, because the mean of its divisors is an integer number (2733057576).

Almost surely, 2^10021211101 is an apocalyptic number.

10021211101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021211101 is a deficient number, since it is larger than the sum of its proper divisors (911019203).

10021211101 is an equidigital number, since it uses as much as digits as its factorization.

10021211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911019202.

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

Adding to 10021211101 its reverse (10111212001), we get a palindrome (20132423102).

It can be divided in two parts, 10021 and 211101, that added together give a palindrome (221122).

The spelling of 10021211101 in words is "ten billion, twenty-one million, two hundred eleven thousand, one hundred one".