221101002101210 has 128 divisors (see below), whose sum is σ = 498006210562560. Its totient is φ = 68661721497600.

The previous prime is 221101002101201. The next prime is 221101002101237. The reversal of 221101002101210 is 12101200101122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2132707256 + ... + 2132810924.

It is an arithmetic number, because the mean of its divisors is an integer number (3890673520020).

Almost surely, 2^{221101002101210} is an apocalyptic number.

221101002101210 is an abundant number, since it is smaller than the sum of its proper divisors (276905208461350).

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

221101002101210 is a wasteful number, since it uses less digits than its factorization.

221101002101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113832.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221101002101210 its reverse (12101200101122), we get a palindrome (233202202202332).

The spelling of 221101002101210 in words is "two hundred twenty-one trillion, one hundred one billion, two million, one hundred one thousand, two hundred ten".