20121321122 has 8 divisors (see below), whose sum is σ = 34493693376. Its totient is φ = 8623423332.

The previous prime is 20121321097. The next prime is 20121321161. The reversal of 20121321122 is 22112312102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20121321122.

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, 718618598 + ... + 718618625.

It is an arithmetic number, because the mean of its divisors is an integer number (4311711672).

Almost surely, 2^20121321122 is an apocalyptic number.

20121321122 is a deficient number, since it is larger than the sum of its proper divisors (14372372254).

20121321122 is a wasteful number, since it uses less digits than its factorization.

20121321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437237232.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20121321122 its reverse (22112312102), we get a palindrome (42233633224).

The spelling of 20121321122 in words is "twenty billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred twenty-two".