2220161111988 has 96 divisors (see below), whose sum is σ = 5291158118400. Its totient is φ = 724435920000.

The previous prime is 2220161111921. The next prime is 2220161111989. The reversal of 2220161111988 is 8891111610222.

It is a happy number.

2220161111988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220161111989) 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, 43001413 + ... + 43053011.

It is an arithmetic number, because the mean of its divisors is an integer number (55116230400).

Almost surely, 2^{2220161111988} is an apocalyptic number.

It is an amenable number.

2220161111988 is an abundant number, since it is smaller than the sum of its proper divisors (3070997006412).

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

2220161111988 is a wasteful number, since it uses less digits than its factorization.

2220161111988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52109 (or 52107 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 42.

The spelling of 2220161111988 in words is "two trillion, two hundred twenty billion, one hundred sixty-one million, one hundred eleven thousand, nine hundred eighty-eight".