2012111020220 has 96 divisors (see below), whose sum is σ = 4980280639488. Its totient is φ = 668517276672.

The previous prime is 2012111020219. The next prime is 2012111020229. The reversal of 2012111020220 is 220201112102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2012111020195 and 2012111020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012111020229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 551357 + ... + 2080436.

It is an arithmetic number, because the mean of its divisors is an integer number (51877923328).

Almost surely, 2^{2012111020220} is an apocalyptic number.

2012111020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012111020220 is an abundant number, since it is smaller than the sum of its proper divisors (2968169619268).

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

2012111020220 is a wasteful number, since it uses less digits than its factorization.

2012111020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631979 (or 2631977 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2012111020220 its reverse (220201112102), we get a palindrome (2232312132322).

The spelling of 2012111020220 in words is "two trillion, twelve billion, one hundred eleven million, twenty thousand, two hundred twenty".