21100011022211 has 8 divisors (see below), whose sum is σ = 23021947086384. Its totient is φ = 19178700498720.

The previous prime is 21100011022177. The next prime is 21100011022213. The reversal of 21100011022211 is 11222011000112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21100011022211 - 2⁶ = 21100011022147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21100011022213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156314636 + ... + 156449561.

It is an arithmetic number, because the mean of its divisors is an integer number (2877743385798).

Almost surely, 2^{21100011022211} is an apocalyptic number.

21100011022211 is a deficient number, since it is larger than the sum of its proper divisors (1921936064173).

21100011022211 is a wasteful number, since it uses less digits than its factorization.

21100011022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312770341.

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

Adding to 21100011022211 its reverse (11222011000112), we get a palindrome (32322022022323).

It can be divided in two parts, 211000 and 11022211, that added together give a palindrome (11233211).

The spelling of 21100011022211 in words is "twenty-one trillion, one hundred billion, eleven million, twenty-two thousand, two hundred eleven".