2212119978 has 32 divisors (see below), whose sum is σ = 4475139840. Its totient is φ = 728913600.

The previous prime is 2212119947. The next prime is 2212119983. The reversal of 2212119978 is 8799112122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433176 + ... + 438252.

It is an arithmetic number, because the mean of its divisors is an integer number (139848120).

Almost surely, 2^2212119978 is an apocalyptic number.

2212119978 is an abundant number, since it is smaller than the sum of its proper divisors (2263019862).

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

2212119978 is a wasteful number, since it uses less digits than its factorization.

2212119978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5902.

The product of its digits is 36288, while the sum is 42.

The square root of 2212119978 is about 47033.1795438072. The cubic root of 2212119978 is about 1302.9754288498.

The spelling of 2212119978 in words is "two billion, two hundred twelve million, one hundred nineteen thousand, nine hundred seventy-eight".