2211200988 has 12 divisors (see below), whose sum is σ = 5159469000. Its totient is φ = 737066992.

The previous prime is 2211200987. The next prime is 2211201023. The reversal of 2211200988 is 8890021122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2211200988² = 9778819618664352288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211200983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92133363 + ... + 92133386.

It is an arithmetic number, because the mean of its divisors is an integer number (429955750).

Almost surely, 2^2211200988 is an apocalyptic number.

It is an amenable number.

2211200988 is an abundant number, since it is smaller than the sum of its proper divisors (2948268012).

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

2211200988 is a wasteful number, since it uses less digits than its factorization.

2211200988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184266756 (or 184266754 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 2211200988 is about 47023.4089364010. The cubic root of 2211200988 is about 1302.7949703972.

The spelling of 2211200988 in words is "two billion, two hundred eleven million, two hundred thousand, nine hundred eighty-eight".