101210012111 has 16 divisors (see below), whose sum is σ = 111441391488. Its totient is φ = 91332595200.

The previous prime is 101210012087. The next prime is 101210012119. The reversal of 101210012111 is 111210012101.

It is a cyclic number.

It is not a de Polignac number, because 101210012111 - 2²² = 101205817807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101210012092 and 101210012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210012119) 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, 444281 + ... + 632301.

It is an arithmetic number, because the mean of its divisors is an integer number (6965086968).

Almost surely, 2^101210012111 is an apocalyptic number.

101210012111 is a deficient number, since it is larger than the sum of its proper divisors (10231379377).

101210012111 is a wasteful number, since it uses less digits than its factorization.

101210012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188962.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101210012111 its reverse (111210012101), we get a palindrome (212420024212).

The spelling of 101210012111 in words is "one hundred one billion, two hundred ten million, twelve thousand, one hundred eleven".