221010200110100 has 36 divisors (see below), whose sum is σ = 479967696093564. Its totient is φ = 88334852052480.

The previous prime is 221010200110093. The next prime is 221010200110127. The reversal of 221010200110100 is 1011002010122.

It can be written as a sum of positive squares in 6 ways, for example, as 14880491410576 + 206129708699524 = 3857524^2 + 14357218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 865221557 + ... + 865476956.

It is an arithmetic number, because the mean of its divisors is an integer number (13332436002599).

Almost surely, 2^{221010200110100} is an apocalyptic number.

221010200110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221010200110100 is an abundant number, since it is smaller than the sum of its proper divisors (258957495983464).

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

221010200110100 is a wasteful number, since it uses less digits than its factorization.

221010200110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730699804 (or 1730699797 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221010200110100 its reverse (1011002010122), we get a palindrome (222021202120222).

The spelling of 221010200110100 in words is "two hundred twenty-one trillion, ten billion, two hundred million, one hundred ten thousand, one hundred".