1919020222 has 24 divisors (see below), whose sum is σ = 3350998080. Its totient is φ = 821822400.

The previous prime is 1919020183. The next prime is 1919020247. The reversal of 1919020222 is 2220209191.

It is a super-2 number, since 2×1919020222² = 7365277224889858568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139347 + ... + 152497.

It is an arithmetic number, because the mean of its divisors is an integer number (139624920).

Almost surely, 2^1919020222 is an apocalyptic number.

1919020222 is a deficient number, since it is larger than the sum of its proper divisors (1431977858).

1919020222 is a wasteful number, since it uses less digits than its factorization.

1919020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14656 (or 14649 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1919020222 is about 43806.6230380750. The cubic root of 1919020222 is about 1242.6815498781.

The spelling of 1919020222 in words is "one billion, nine hundred nineteen million, twenty thousand, two hundred twenty-two".