10101221211 has 8 divisors (see below), whose sum is σ = 14260547664. Its totient is φ = 6338021120.

The previous prime is 10101221183. The next prime is 10101221231. The reversal of 10101221211 is 11212210101.

10101221211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10101221211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10101221231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99031530 + ... + 99031631.

It is an arithmetic number, because the mean of its divisors is an integer number (1782568458).

Almost surely, 2^10101221211 is an apocalyptic number.

10101221211 is a deficient number, since it is larger than the sum of its proper divisors (4159326453).

10101221211 is a wasteful number, since it uses less digits than its factorization.

10101221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198063181.

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

Adding to 10101221211 its reverse (11212210101), we get a palindrome (21313431312).

It can be divided in two parts, 1010 and 1221211, that added together give a palindrome (1222221).

The spelling of 10101221211 in words is "ten billion, one hundred one million, two hundred twenty-one thousand, two hundred eleven".