1220434102 has 16 divisors (see below), whose sum is σ = 1891279872. Its totient is φ = 590040360.

The previous prime is 1220434099. The next prime is 1220434129. The reversal of 1220434102 is 2014340221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220434102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73233 + ... + 88339.

It is an arithmetic number, because the mean of its divisors is an integer number (118204992).

Almost surely, 2^1220434102 is an apocalyptic number.

1220434102 is a deficient number, since it is larger than the sum of its proper divisors (670845770).

1220434102 is a wasteful number, since it uses less digits than its factorization.

1220434102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16443.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1220434102 is about 34934.7119925154. The cubic root of 1220434102 is about 1068.6564503368.

Adding to 1220434102 its reverse (2014340221), we get a palindrome (3234774323).

The spelling of 1220434102 in words is "one billion, two hundred twenty million, four hundred thirty-four thousand, one hundred two".