101221110011211 has 16 divisors (see below), whose sum is σ = 135101242832640. Its totient is φ = 67410894771360.

The previous prime is 101221110011171. The next prime is 101221110011213. The reversal of 101221110011211 is 112110011122101.

It is not a de Polignac number, because 101221110011211 - 2¹¹ = 101221110009163 is a prime.

It is a super-2 number, since 2×101221110011211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101221110011213) 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, 6678210 + ... + 15717528.

It is an arithmetic number, because the mean of its divisors is an integer number (8443827677040).

Almost surely, 2^{101221110011211} is an apocalyptic number.

101221110011211 is a deficient number, since it is larger than the sum of its proper divisors (33880132821429).

101221110011211 is a wasteful number, since it uses less digits than its factorization.

101221110011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043186.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101221110011211 its reverse (112110011122101), we get a palindrome (213331121133312).

The spelling of 101221110011211 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred ten million, eleven thousand, two hundred eleven".