21112220002101 has 16 divisors (see below), whose sum is σ = 29374552521600. Its totient is φ = 13462393285440.

The previous prime is 21112220002043. The next prime is 21112220002121. The reversal of 21112220002101 is 10120002221112.

It is not a de Polignac number, because 21112220002101 - 2⁹ = 21112220001589 is a prime.

It is a super-2 number, since 2×21112220002101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112220002121) 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, 3370426 + ... + 7320123.

It is an arithmetic number, because the mean of its divisors is an integer number (1835909532600).

Almost surely, 2^{21112220002101} is an apocalyptic number.

It is an amenable number.

21112220002101 is a deficient number, since it is larger than the sum of its proper divisors (8262332519499).

21112220002101 is a wasteful number, since it uses less digits than its factorization.

21112220002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10719196.

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

Adding to 21112220002101 its reverse (10120002221112), we get a palindrome (31232222223213).

The spelling of 21112220002101 in words is "twenty-one trillion, one hundred twelve billion, two hundred twenty million, two thousand, one hundred one".