1020220135 has 16 divisors (see below), whose sum is σ = 1344535200. Its totient is φ = 736992640.

The previous prime is 1020220127. The next prime is 1020220151. The reversal of 1020220135 is 5310220201.

It is not a de Polignac number, because 1020220135 - 2³ = 1020220127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54052 + ... + 70441.

It is an arithmetic number, because the mean of its divisors is an integer number (84033450).

Almost surely, 2^1020220135 is an apocalyptic number.

1020220135 is a deficient number, since it is larger than the sum of its proper divisors (324315065).

1020220135 is a wasteful number, since it uses less digits than its factorization.

1020220135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124658.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1020220135 is about 31940.8850065242. The cubic root of 1020220135 is about 1006.6951203283.

Adding to 1020220135 its reverse (5310220201), we get a palindrome (6330440336).

The spelling of 1020220135 in words is "one billion, twenty million, two hundred twenty thousand, one hundred thirty-five".