1220100122 has 16 divisors (see below), whose sum is σ = 1894717440. Its totient is φ = 588560112.

The previous prime is 1220100107. The next prime is 1220100131. The reversal of 1220100122 is 2210010221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75143 + ... + 89925.

It is an arithmetic number, because the mean of its divisors is an integer number (118419840).

Almost surely, 2^1220100122 is an apocalyptic number.

1220100122 is a deficient number, since it is larger than the sum of its proper divisors (674617318).

1220100122 is a wasteful number, since it uses less digits than its factorization.

1220100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16237.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220100122 is about 34929.9316060023. The cubic root of 1220100122 is about 1068.5589597683.

Adding to 1220100122 its reverse (2210010221), we get a palindrome (3430110343).

The spelling of 1220100122 in words is "one billion, two hundred twenty million, one hundred thousand, one hundred twenty-two".