21121000001122 has 32 divisors (see below), whose sum is σ = 36218217226752. Its totient is φ = 9049160441664.

The previous prime is 21121000001119. The next prime is 21121000001161. The reversal of 21121000001122 is 22110000012112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113204028 + ... + 1113223000.

It is an arithmetic number, because the mean of its divisors is an integer number (1131819288336).

Almost surely, 2^{21121000001122} is an apocalyptic number.

21121000001122 is a deficient number, since it is larger than the sum of its proper divisors (15097217225630).

21121000001122 is a wasteful number, since it uses less digits than its factorization.

21121000001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38482.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21121000001122 its reverse (22110000012112), we get a palindrome (43231000013234).

The spelling of 21121000001122 in words is "twenty-one trillion, one hundred twenty-one billion, one thousand, one hundred twenty-two".