101021112211111 has 16 divisors (see below), whose sum is σ = 104215872809664. Its totient is φ = 97890290601984.

The previous prime is 101021112211087. The next prime is 101021112211141. The reversal of 101021112211111 is 111112211120101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101021112211111 is a prime.

It is a super-2 number, since 2×101021112211111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021112211141) 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, 51097435 + ... + 53037628.

It is an arithmetic number, because the mean of its divisors is an integer number (6513492050604).

Almost surely, 2^{101021112211111} is an apocalyptic number.

101021112211111 is a deficient number, since it is larger than the sum of its proper divisors (3194760598553).

101021112211111 is a wasteful number, since it uses less digits than its factorization.

101021112211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104135370.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 101021112211111 its reverse (111112211120101), we get a palindrome (212133323331212).

The spelling of 101021112211111 in words is "one hundred one trillion, twenty-one billion, one hundred twelve million, two hundred eleven thousand, one hundred eleven".