101112210121 has 8 divisors (see below), whose sum is σ = 111422400320. Its totient is φ = 91163781072.

The previous prime is 101112210083. The next prime is 101112210131. The reversal of 101112210121 is 121012211101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101112210121 - 2²¹ = 101110112969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101112210131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90439701 + ... + 90440818.

It is an arithmetic number, because the mean of its divisors is an integer number (13927800040).

Almost surely, 2^101112210121 is an apocalyptic number.

It is an amenable number.

101112210121 is a deficient number, since it is larger than the sum of its proper divisors (10310190199).

101112210121 is a wasteful number, since it uses less digits than its factorization.

101112210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180880575.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101112210121 its reverse (121012211101), we get a palindrome (222124421222).

The spelling of 101112210121 in words is "one hundred one billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-one".