101021110221111 has 16 divisors (see below), whose sum is σ = 137828148522240. Its totient is φ = 65780759761920.

The previous prime is 101021110221103. The next prime is 101021110221193. The reversal of 101021110221111 is 111122011120101.

It is not a de Polignac number, because 101021110221111 - 2³ = 101021110221103 is a prime.

It is a super-4 number, since 4×101021110221111⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021110221511) 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, 17978871 + ... + 22919031.

It is an arithmetic number, because the mean of its divisors is an integer number (8614259282640).

Almost surely, 2^{101021110221111} is an apocalyptic number.

101021110221111 is a deficient number, since it is larger than the sum of its proper divisors (36807038301129).

101021110221111 is a wasteful number, since it uses less digits than its factorization.

101021110221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098726.

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

Adding to 101021110221111 its reverse (111122011120101), we get a palindrome (212143121341212).

The spelling of 101021110221111 in words is "one hundred one trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, one hundred eleven".