1022205538 has 16 divisors (see below), whose sum is σ = 1567768320. Its totient is φ = 499641696.

The previous prime is 1022205521. The next prime is 1022205539. The reversal of 1022205538 is 8355022201.

It is not an unprimeable number, because it can be changed into a prime (1022205539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80470 + ... + 92302.

It is an arithmetic number, because the mean of its divisors is an integer number (97985520).

Almost surely, 2^1022205538 is an apocalyptic number.

1022205538 is a deficient number, since it is larger than the sum of its proper divisors (545562782).

1022205538 is a wasteful number, since it uses less digits than its factorization.

1022205538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12801.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1022205538 is about 31971.9492367919. The cubic root of 1022205538 is about 1007.3477247093.

Adding to 1022205538 its reverse (8355022201), we get a palindrome (9377227739).

The spelling of 1022205538 in words is "one billion, twenty-two million, two hundred five thousand, five hundred thirty-eight".