2022219978 has 32 divisors (see below), whose sum is σ = 4161211584. Its totient is φ = 654676992.

The previous prime is 2022219977. The next prime is 2022220003. The reversal of 2022219978 is 8799122202.

It is not an unprimeable number, because it can be changed into a prime (2022219971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120201 + ... + 135987.

It is an arithmetic number, because the mean of its divisors is an integer number (130037862).

Almost surely, 2^2022219978 is an apocalyptic number.

2022219978 is an abundant number, since it is smaller than the sum of its proper divisors (2138991606).

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

2022219978 is a wasteful number, since it uses less digits than its factorization.

2022219978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16406.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 2022219978 is about 44969.1002578437. The cubic root of 2022219978 is about 1264.5697793881.

The spelling of 2022219978 in words is "two billion, twenty-two million, two hundred nineteen thousand, nine hundred seventy-eight".