21010000131122 has 8 divisors (see below), whose sum is σ = 31515164463900. Its totient is φ = 10504945309824.

The previous prime is 21010000131037. The next prime is 21010000131151. The reversal of 21010000131122 is 22113100001012.

It can be written as a sum of positive squares in 2 ways, for example, as 20863143329161 + 146856801961 = 4567619^2 + 383219^2 .

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

It is a super-3 number, since 3×21010000131122³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21010000131097 and 21010000131106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26896547 + ... + 27666662.

Almost surely, 2^{21010000131122} is an apocalyptic number.

21010000131122 is a deficient number, since it is larger than the sum of its proper divisors (10505164332778).

21010000131122 is a wasteful number, since it uses less digits than its factorization.

21010000131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54755740.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21010000131122 its reverse (22113100001012), we get a palindrome (43123100132134).

The spelling of 21010000131122 in words is "twenty-one trillion, ten billion, one hundred thirty-one thousand, one hundred twenty-two".