1021102160 has 80 divisors (see below), whose sum is σ = 2562033936. Its totient is φ = 376233984.

The previous prime is 1021102157. The next prime is 1021102183. The reversal of 1021102160 is 612011201.

It can be written as a sum of positive squares in 8 ways, for example, as 25321024 + 995781136 = 5032^2 + 31556^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786632 + ... + 787928.

Almost surely, 2^1021102160 is an apocalyptic number.

1021102160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021102160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281016968).

1021102160 is an abundant number, since it is smaller than the sum of its proper divisors (1540931776).

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

1021102160 is a wasteful number, since it uses less digits than its factorization.

1021102160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1021102160 is about 31954.6891707618. The cubic root of 1021102160 is about 1006.9851474415.

Adding to 1021102160 its reverse (612011201), we get a palindrome (1633113361).

The spelling of 1021102160 in words is "one billion, twenty-one million, one hundred two thousand, one hundred sixty".