1011220102 has 4 divisors (see below), whose sum is σ = 1516830156. Its totient is φ = 505610050.

The previous prime is 1011220097. The next prime is 1011220123. The reversal of 1011220102 is 2010221101.

It is a semiprime because it is the product of two primes.

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, 252805024 + ... + 252805027.

It is an arithmetic number, because the mean of its divisors is an integer number (379207539).

Almost surely, 2^1011220102 is an apocalyptic number.

1011220102 is a deficient number, since it is larger than the sum of its proper divisors (505610054).

1011220102 is an equidigital number, since it uses as much as digits as its factorization.

1011220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505610053.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1011220102 is about 31799.6871368257. The cubic root of 1011220102 is about 1003.7261326905.

Adding to 1011220102 its reverse (2010221101), we get a palindrome (3021441203).

Subtracting 1011220102 from its reverse (2010221101), we obtain a palindrome (999000999).

The spelling of 1011220102 in words is "one billion, eleven million, two hundred twenty thousand, one hundred two".