1220014100 has 36 divisors (see below), whose sum is σ = 2648947644. Its totient is φ = 487726080.

The previous prime is 1220014099. The next prime is 1220014123. The reversal of 1220014100 is 14100221.

It can be written as a sum of positive squares in 6 ways, for example, as 30316036 + 1189698064 = 5506^2 + 34492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335492 + ... + 339108.

It is an arithmetic number, because the mean of its divisors is an integer number (73581879).

Almost surely, 2^1220014100 is an apocalyptic number.

1220014100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220014100 is an abundant number, since it is smaller than the sum of its proper divisors (1428933544).

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

1220014100 is a wasteful number, since it uses less digits than its factorization.

1220014100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004 (or 6997 counting only the distinct ones).

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

The square root of 1220014100 is about 34928.7002334756. The cubic root of 1220014100 is about 1068.5338466000.

Adding to 1220014100 its reverse (14100221), we get a palindrome (1234114321).

The spelling of 1220014100 in words is "one billion, two hundred twenty million, fourteen thousand, one hundred".