1010221020100 has 72 divisors (see below), whose sum is σ = 2200682772288. Its totient is φ = 402522748800.

The previous prime is 1010221020043. The next prime is 1010221020101. The reversal of 1010221020100 is 10201220101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1010221020101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50900779 + ... + 50920621.

It is an arithmetic number, because the mean of its divisors is an integer number (30565038504).

Almost surely, 2^{1010221020100} is an apocalyptic number.

1010221020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010221020100 is an abundant number, since it is smaller than the sum of its proper divisors (1190461752188).

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

1010221020100 is a wasteful number, since it uses less digits than its factorization.

1010221020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21805 (or 21798 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1010221020100 its reverse (10201220101), we get a palindrome (1020422240201).

The spelling of 1010221020100 in words is "one trillion, ten billion, two hundred twenty-one million, twenty thousand, one hundred".