11210001122221 has 32 divisors (see below), whose sum is σ = 12491839958400. Its totient is φ = 9974321280000.

The previous prime is 11210001122219. The next prime is 11210001122233. The reversal of 11210001122221 is 12222110001211.

It is not a de Polignac number, because 11210001122221 - 2¹ = 11210001122219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210001122195 and 11210001122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210001125221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 535814841 + ... + 535835761.

It is an arithmetic number, because the mean of its divisors is an integer number (390369998700).

Almost surely, 2^{11210001122221} is an apocalyptic number.

11210001122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210001122221 is a deficient number, since it is larger than the sum of its proper divisors (1281838836179).

11210001122221 is a wasteful number, since it uses less digits than its factorization.

11210001122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26541.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11210001122221 its reverse (12222110001211), we get a palindrome (23432111123432).

The spelling of 11210001122221 in words is "eleven trillion, two hundred ten billion, one million, one hundred twenty-two thousand, two hundred twenty-one".