221020100102211 has 16 divisors (see below), whose sum is σ = 294890175300000. Its totient is φ = 147248383327488.

The previous prime is 221020100102189. The next prime is 221020100102233. The reversal of 221020100102211 is 112201001020122.

It is an interprime number because it is at equal distance from previous prime (221020100102189) and next prime (221020100102233).

It is not a de Polignac number, because 221020100102211 - 2¹³ = 221020100094019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221020100107211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221801415 + ... + 222795663.

It is an arithmetic number, because the mean of its divisors is an integer number (18430635956250).

Almost surely, 2^{221020100102211} is an apocalyptic number.

221020100102211 is a deficient number, since it is larger than the sum of its proper divisors (73870075197789).

221020100102211 is a wasteful number, since it uses less digits than its factorization.

221020100102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043638.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221020100102211 its reverse (112201001020122), we get a palindrome (333221101122333).

The spelling of 221020100102211 in words is "two hundred twenty-one trillion, twenty billion, one hundred million, one hundred two thousand, two hundred eleven".