21112001030122 has 8 divisors (see below), whose sum is σ = 31673181998916. Its totient is φ = 10554273697152.

The previous prime is 21112001030077. The next prime is 21112001030143. The reversal of 21112001030122 is 22103010021112.

It can be written as a sum of positive squares in 2 ways, for example, as 20625049673361 + 486951356761 = 4541481^2 + 697819^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21112001030096 and 21112001030105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863393673 + ... + 863418124.

Almost surely, 2^{21112001030122} is an apocalyptic number.

21112001030122 is a deficient number, since it is larger than the sum of its proper divisors (10561180968794).

21112001030122 is a wasteful number, since it uses less digits than its factorization.

21112001030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726817912.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21112001030122 its reverse (22103010021112), we get a palindrome (43215011051234).

The spelling of 21112001030122 in words is "twenty-one trillion, one hundred twelve billion, one million, thirty thousand, one hundred twenty-two".