1022109985 has 16 divisors (see below), whose sum is σ = 1323241920. Its totient is φ = 753439680.

The previous prime is 1022109983. The next prime is 1022110007. The reversal of 1022109985 is 5899012201.

It is not a de Polignac number, because 1022109985 - 2¹ = 1022109983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1022109983) 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, 23346 + ... + 50884.

It is an arithmetic number, because the mean of its divisors is an integer number (82702620).

Almost surely, 2^1022109985 is an apocalyptic number.

It is an amenable number.

1022109985 is a deficient number, since it is larger than the sum of its proper divisors (301131935).

1022109985 is a wasteful number, since it uses less digits than its factorization.

1022109985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28128.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 1022109985 is about 31970.4548763386. The cubic root of 1022109985 is about 1007.3163356873.

The spelling of 1022109985 in words is "one billion, twenty-two million, one hundred nine thousand, nine hundred eighty-five".