2211321568 has 36 divisors (see below), whose sum is σ = 4551088248. Its totient is φ = 1057580480.

The previous prime is 2211321559. The next prime is 2211321571. The reversal of 2211321568 is 8651231122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48388 + ... + 82243.

It is an arithmetic number, because the mean of its divisors is an integer number (126419118).

Almost surely, 2^2211321568 is an apocalyptic number.

It is an amenable number.

2211321568 is an abundant number, since it is smaller than the sum of its proper divisors (2339766680).

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

2211321568 is a wasteful number, since it uses less digits than its factorization.

2211321568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130687 (or 130656 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 2211321568 is about 47024.6910463003. The cubic root of 2211321568 is about 1302.8186510671.

It can be divided in two parts, 22113 and 21568, that added together give a square (43681 = 209²).

The spelling of 2211321568 in words is "two billion, two hundred eleven million, three hundred twenty-one thousand, five hundred sixty-eight".