2011219980 has 192 divisors, whose sum is σ = 7055354880. Its totient is φ = 415872000.

The previous prime is 2011219979. The next prime is 2011220009. The reversal of 2011219980 is 899121102.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1057030 + ... + 1058930.

It is an arithmetic number, because the mean of its divisors is an integer number (36746640).

Almost surely, 2^2011219980 is an apocalyptic number.

2011219980 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 2011219980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3527677440).

2011219980 is an abundant number, since it is smaller than the sum of its proper divisors (5044134900).

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

2011219980 is a wasteful number, since it uses less digits than its factorization.

2011219980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 2011219980 is about 44846.6272979362. The cubic root of 2011219980 is about 1262.2727059365.

The spelling of 2011219980 in words is "two billion, eleven million, two hundred nineteen thousand, nine hundred eighty".