101121111012 has 24 divisors (see below), whose sum is σ = 246207923136. Its totient is φ = 32241513568.

The previous prime is 101121110947. The next prime is 101121111029. The reversal of 101121111012 is 210111121101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183190143 + ... + 183190694.

It is an arithmetic number, because the mean of its divisors is an integer number (10258663464).

Almost surely, 2^101121111012 is an apocalyptic number.

101121111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101121111012 is an abundant number, since it is smaller than the sum of its proper divisors (145086812124).

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

101121111012 is a wasteful number, since it uses less digits than its factorization.

101121111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366380867 (or 366380865 counting only the distinct ones).

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

Adding to 101121111012 its reverse (210111121101), we get a palindrome (311232232113).

The spelling of 101121111012 in words is "one hundred one billion, one hundred twenty-one million, one hundred eleven thousand, twelve".