101111002221 has 16 divisors (see below), whose sum is σ = 142902391104. Its totient is φ = 63372221184.

The previous prime is 101111002177. The next prime is 101111002247. The reversal of 101111002221 is 122200111101.

It is not a de Polignac number, because 101111002221 - 2⁷ = 101111002093 is a prime.

It is a super-4 number, since 4×101111002221⁴ (a number of 45 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101111002197 and 101111002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111002271) 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, 1046670 + ... + 1139183.

It is an arithmetic number, because the mean of its divisors is an integer number (8931399444).

Almost surely, 2^101111002221 is an apocalyptic number.

It is an amenable number.

101111002221 is a deficient number, since it is larger than the sum of its proper divisors (41791388883).

101111002221 is a wasteful number, since it uses less digits than its factorization.

101111002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186780.

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

Adding to 101111002221 its reverse (122200111101), we get a palindrome (223311113322).

The spelling of 101111002221 in words is "one hundred one billion, one hundred eleven million, two thousand, two hundred twenty-one".