12121101030 has 32 divisors (see below), whose sum is σ = 29302992864. Its totient is φ = 3208699136.

The previous prime is 12121101011. The next prime is 12121101073. The reversal of 12121101030 is 3010112121.

It is a junction number, because it is equal to n+sod(n) for n = 12121100997 and 12121101015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470477 + ... + 1478696.

It is an arithmetic number, because the mean of its divisors is an integer number (915718527).

Almost surely, 2^12121101030 is an apocalyptic number.

12121101030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121101030 is an abundant number, since it is smaller than the sum of its proper divisors (17181891834).

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

12121101030 is a wasteful number, since it uses less digits than its factorization.

12121101030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949320.

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

Adding to 12121101030 its reverse (3010112121), we get a palindrome (15131213151).

The spelling of 12121101030 in words is "twelve billion, one hundred twenty-one million, one hundred one thousand, thirty".