101121111102 has 24 divisors (see below), whose sum is σ = 222299303688. Its totient is φ = 30642760720.

The previous prime is 101121111053. The next prime is 101121111103. The reversal of 101121111102 is 201111121101.

It is a super-2 number, since 2×101121111102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101121111103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69641913 + ... + 69643364.

It is an arithmetic number, because the mean of its divisors is an integer number (9262470987).

Almost surely, 2^101121111102 is an apocalyptic number.

101121111102 is an abundant number, since it is smaller than the sum of its proper divisors (121178192586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101121111102 is a wasteful number, since it uses less digits than its factorization.

101121111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139285304 (or 139285293 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101121111102 its reverse (201111121101), we get a palindrome (302232232203).

Subtracting 101121111102 from its reverse (201111121101), we obtain a palindrome (99990009999).

The spelling of 101121111102 in words is "one hundred one billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".