21121311131122 has 8 divisors (see below), whose sum is σ = 31682239295472. Its totient is φ = 10560564699300.

The previous prime is 21121311131047. The next prime is 21121311131147. The reversal of 21121311131122 is 22113111312112.

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

It is a super-2 number, since 2×21121311131122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21121311131093 and 21121311131102.

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, 45142204 + ... + 45607687.

It is an arithmetic number, because the mean of its divisors is an integer number (3960279911934).

Almost surely, 2^{21121311131122} is an apocalyptic number.

21121311131122 is a deficient number, since it is larger than the sum of its proper divisors (10560928164350).

21121311131122 is a wasteful number, since it uses less digits than its factorization.

21121311131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90866264.

The product of its digits is 144, while the sum is 22.

Adding to 21121311131122 its reverse (22113111312112), we get a palindrome (43234422443234).

The spelling of 21121311131122 in words is "twenty-one trillion, one hundred twenty-one billion, three hundred eleven million, one hundred thirty-one thousand, one hundred twenty-two".