101021200111 has 32 divisors (see below), whose sum is σ = 118718208000. Its totient is φ = 85115173248.

The previous prime is 101021200097. The next prime is 101021200123. The reversal of 101021200111 is 111002120101.

It is a cyclic number.

It is not a de Polignac number, because 101021200111 - 2⁹ = 101021199599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021200411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3416356 + ... + 3445798.

It is an arithmetic number, because the mean of its divisors is an integer number (3709944000).

Almost surely, 2^101021200111 is an apocalyptic number.

101021200111 is a deficient number, since it is larger than the sum of its proper divisors (17697007889).

101021200111 is a wasteful number, since it uses less digits than its factorization.

101021200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29983.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101021200111 its reverse (111002120101), we get a palindrome (212023320212).

The spelling of 101021200111 in words is "one hundred one billion, twenty-one million, two hundred thousand, one hundred eleven".