101021200111111 has 16 divisors (see below), whose sum is σ = 119177522894848. Its totient is φ = 83796078592800.

The previous prime is 101021200111043. The next prime is 101021200111157. The reversal of 101021200111111 is 111111002120101.

It is not a de Polignac number, because 101021200111111 - 2⁹ = 101021200110599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101021200111091 and 101021200111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021200111211) 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, 72721516 + ... + 74097646.

It is an arithmetic number, because the mean of its divisors is an integer number (7448595180928).

Almost surely, 2^{101021200111111} is an apocalyptic number.

101021200111111 is a deficient number, since it is larger than the sum of its proper divisors (18156322783737).

101021200111111 is a wasteful number, since it uses less digits than its factorization.

101021200111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714462.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 101021200111111 its reverse (111111002120101), we get a palindrome (212132202231212).

The spelling of 101021200111111 in words is "one hundred one trillion, twenty-one billion, two hundred million, one hundred eleven thousand, one hundred eleven".