1200220526 has 4 divisors (see below), whose sum is σ = 1800330792. Its totient is φ = 600110262.

The previous prime is 1200220517. The next prime is 1200220537. The reversal of 1200220526 is 6250220021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6250220021 = 461 ⋅13557961.

It is a super-2 number, since 2×1200220526² = 2881058622063433352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200220498 and 1200220507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300055130 + ... + 300055133.

It is an arithmetic number, because the mean of its divisors is an integer number (450082698).

Almost surely, 2^1200220526 is an apocalyptic number.

1200220526 is a deficient number, since it is larger than the sum of its proper divisors (600110266).

1200220526 is an equidigital number, since it uses as much as digits as its factorization.

1200220526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600110265.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1200220526 is about 34644.1990237904. The cubic root of 1200220526 is about 1062.7236607076.

Adding to 1200220526 its reverse (6250220021), we get a palindrome (7450440547).

The spelling of 1200220526 in words is "one billion, two hundred million, two hundred twenty thousand, five hundred twenty-six".