1010221221100 has 72 divisors (see below), whose sum is σ = 2698067777888. Its totient is φ = 319718361600.

The previous prime is 1010221221071. The next prime is 1010221221133. The reversal of 1010221221100 is 11221220101.

1010221221100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55497561 + ... + 55515760.

Almost surely, 2^{1010221221100} is an apocalyptic number.

1010221221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010221221100 is an abundant number, since it is smaller than the sum of its proper divisors (1687846556788).

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

1010221221100 is a wasteful number, since it uses less digits than its factorization.

1010221221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111013355 (or 111013348 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1010221221100 its reverse (11221220101), we get a palindrome (1021442441201).

Subtracting from 1010221221100 its reverse (11221220101), we obtain a palindrome (999000000999).

It can be divided in two parts, 1010221 and 221100, that added together give a palindrome (1231321).

The spelling of 1010221221100 in words is "one trillion, ten billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred".