1054220205 has 16 divisors (see below), whose sum is σ = 1702229760. Its totient is φ = 557091648.

The previous prime is 1054220183. The next prime is 1054220221. The reversal of 1054220205 is 5020224501.

It is a happy number.

It is not a de Polignac number, because 1054220205 - 2⁷ = 1054220077 is a prime.

It is a super-2 number, since 2×1054220205² = 2222760481260484050, 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 15 ways as a sum of consecutive naturals, for example, 320757 + ... + 324026.

It is an arithmetic number, because the mean of its divisors is an integer number (106389360).

Almost surely, 2^1054220205 is an apocalyptic number.

1054220205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1054220205 is a deficient number, since it is larger than the sum of its proper divisors (648009555).

1054220205 is a wasteful number, since it uses less digits than its factorization.

1054220205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644900.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1054220205 is about 32468.7573676604. The cubic root of 1054220205 is about 1017.7562511228.

Adding to 1054220205 its reverse (5020224501), we get a palindrome (6074444706).

The spelling of 1054220205 in words is "one billion, fifty-four million, two hundred twenty thousand, two hundred five".