101011211110221 has 16 divisors (see below), whose sum is σ = 134887906957824. Its totient is φ = 67237674642864.

The previous prime is 101011211110171. The next prime is 101011211110267. The reversal of 101011211110221 is 122011112110101.

It is not a de Polignac number, because 101011211110221 - 2⁶ = 101011211110157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101011211110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011211110291) 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, 28847730 + ... + 32159196.

It is an arithmetic number, because the mean of its divisors is an integer number (8430494184864).

Almost surely, 2^{101011211110221} is an apocalyptic number.

It is an amenable number.

101011211110221 is a deficient number, since it is larger than the sum of its proper divisors (33876695847603).

101011211110221 is a wasteful number, since it uses less digits than its factorization.

101011211110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327040.

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

Adding to 101011211110221 its reverse (122011112110101), we get a palindrome (223022323220322).

The spelling of 101011211110221 in words is "one hundred one trillion, eleven billion, two hundred eleven million, one hundred ten thousand, two hundred twenty-one".