101112121102 has 4 divisors (see below), whose sum is σ = 151668181656. Its totient is φ = 50556060550.

The previous prime is 101112121091. The next prime is 101112121109. The reversal of 101112121102 is 201121211101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201121211101 = 225223 ⋅892987.

It is a super-3 number, since 3×101112121102³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112121109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25278030274 + ... + 25278030277.

It is an arithmetic number, because the mean of its divisors is an integer number (37917045414).

Almost surely, 2^101112121102 is an apocalyptic number.

101112121102 is a deficient number, since it is larger than the sum of its proper divisors (50556060554).

101112121102 is an equidigital number, since it uses as much as digits as its factorization.

101112121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50556060553.

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

Adding to 101112121102 its reverse (201121211101), we get a palindrome (302233332203).

The spelling of 101112121102 in words is "one hundred one billion, one hundred twelve million, one hundred twenty-one thousand, one hundred two".