12120211010028 has 48 divisors (see below), whose sum is σ = 31241970869760. Its totient is φ = 3626300184000.

The previous prime is 12120211010021. The next prime is 12120211010029. The reversal of 12120211010028 is 82001011202121.

It is a junction number, because it is equal to n+sod(n) for n = 12120211009986 and 12120211010013.

It is not an unprimeable number, because it can be changed into a prime (12120211010021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581127423 + ... + 581148278.

It is an arithmetic number, because the mean of its divisors is an integer number (650874393120).

Almost surely, 2^{12120211010028} is an apocalyptic number.

It is an amenable number.

12120211010028 is an abundant number, since it is smaller than the sum of its proper divisors (19121759859732).

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

12120211010028 is a wasteful number, since it uses less digits than its factorization.

12120211010028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162275798 (or 1162275796 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 12120211010028 its reverse (82001011202121), we get a palindrome (94121222212149).

The spelling of 12120211010028 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, ten thousand, twenty-eight".