220102102100 has 18 divisors (see below), whose sum is σ = 477621561774. Its totient is φ = 88040840800.

The previous prime is 220102102049. The next prime is 220102102151. The reversal of 220102102100 is 1201201022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220102102049) and next prime (220102102151).

It can be written as a sum of positive squares in 3 ways, for example, as 42527513284 + 177574588816 = 206222^2 + 421396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1100510411 + ... + 1100510610.

Almost surely, 2^220102102100 is an apocalyptic number.

220102102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102102100 is an abundant number, since it is smaller than the sum of its proper divisors (257519459674).

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

220102102100 is a wasteful number, since it uses less digits than its factorization.

220102102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201021035 (or 2201021028 counting only the distinct ones).

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

Adding to 220102102100 its reverse (1201201022), we get a palindrome (221303303122).

The spelling of 220102102100 in words is "two hundred twenty billion, one hundred two million, one hundred two thousand, one hundred".