1200222010 has 16 divisors (see below), whose sum is σ = 2326584456. Its totient is φ = 443158848.

The previous prime is 1200221989. The next prime is 1200222013. The reversal of 1200222010 is 102220021.

It can be written as a sum of positive squares in 4 ways, for example, as 400520169 + 799701841 = 20013^2 + 28279^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1200222013) 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, 4616109 + ... + 4616368.

Almost surely, 2^1200222010 is an apocalyptic number.

1200222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200222010 is a deficient number, since it is larger than the sum of its proper divisors (1126362446).

1200222010 is a wasteful number, since it uses less digits than its factorization.

1200222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232497.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1200222010 is about 34644.2204415109. The cubic root of 1200222010 is about 1062.7240987052.

Adding to 1200222010 its reverse (102220021), we get a palindrome (1302442031).

The spelling of 1200222010 in words is "one billion, two hundred million, two hundred twenty-two thousand, ten".