1220202174 has 16 divisors (see below), whose sum is σ = 2449217808. Its totient is φ = 405265152.

The previous prime is 1220202143. The next prime is 1220202209. The reversal of 1220202174 is 4712020221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220202174.

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, 365427 + ... + 368750.

It is an arithmetic number, because the mean of its divisors is an integer number (153076113).

Almost surely, 2^1220202174 is an apocalyptic number.

1220202174 is an abundant number, since it is smaller than the sum of its proper divisors (1229015634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220202174 is a wasteful number, since it uses less digits than its factorization.

1220202174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734459.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1220202174 is about 34931.3923856465. The cubic root of 1220202174 is about 1068.5887511865.

Adding to 1220202174 its reverse (4712020221), we get a palindrome (5932222395).

It can be divided in two parts, 122020217 and 4, that added together give a palindrome (122020221).

The spelling of 1220202174 in words is "one billion, two hundred twenty million, two hundred two thousand, one hundred seventy-four".