2012022111220 has 96 divisors (see below), whose sum is σ = 4645021199616. Its totient is φ = 725996544000.

The previous prime is 2012022111167. The next prime is 2012022111247. The reversal of 2012022111220 is 221112202102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2012022111194 and 2012022111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25624020 + ... + 25702420.

It is an arithmetic number, because the mean of its divisors is an integer number (48385637496).

Almost surely, 2^{2012022111220} is an apocalyptic number.

2012022111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012022111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2322510599808).

2012022111220 is an abundant number, since it is smaller than the sum of its proper divisors (2632999088396).

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

2012022111220 is a wasteful number, since it uses less digits than its factorization.

2012022111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79321 (or 79319 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2012022111220 its reverse (221112202102), we get a palindrome (2233134313322).

The spelling of 2012022111220 in words is "two trillion, twelve billion, twenty-two million, one hundred eleven thousand, two hundred twenty".