1220102898 has 192 divisors, whose sum is σ = 3187768320. Its totient is φ = 303730560.

The previous prime is 1220102893. The next prime is 1220102899. The reversal of 1220102898 is 8982010221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220102893) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28374465 + ... + 28374507.

It is an arithmetic number, because the mean of its divisors is an integer number (16602960).

Almost surely, 2^1220102898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220102898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593884160).

1220102898 is an abundant number, since it is smaller than the sum of its proper divisors (1967665422).

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

1220102898 is a wasteful number, since it uses less digits than its factorization.

1220102898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1220102898 is about 34929.9713426736. The cubic root of 1220102898 is about 1068.5597701711.

The spelling of 1220102898 in words is "one billion, two hundred twenty million, one hundred two thousand, eight hundred ninety-eight".