12020111222010 has 32 divisors (see below), whose sum is σ = 28851262981632. Its totient is φ = 3205030098240.

The previous prime is 12020111221991. The next prime is 12020111222011. The reversal of 12020111222010 is 1022211102021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12020111222011) 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, 20512149 + ... + 21090008.

It is an arithmetic number, because the mean of its divisors is an integer number (901601968176).

Almost surely, 2^{12020111222010} is an apocalyptic number.

12020111222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020111222010 is an abundant number, since it is smaller than the sum of its proper divisors (16831151759622).

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

12020111222010 is a wasteful number, since it uses less digits than its factorization.

12020111222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41611798.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12020111222010 its reverse (1022211102021), we get a palindrome (13042322324031).

The spelling of 12020111222010 in words is "twelve trillion, twenty billion, one hundred eleven million, two hundred twenty-two thousand, ten".