20033121223212 has 24 divisors (see below), whose sum is σ = 46745385220800. Its totient is φ = 6677501974416.

The previous prime is 20033121223097. The next prime is 20033121223231. The reversal of 20033121223212 is 21232212133002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25230262 + ... + 26012157.

It is an arithmetic number, because the mean of its divisors is an integer number (1947724384200).

Almost surely, 2^{20033121223212} is an apocalyptic number.

It is an amenable number.

20033121223212 is an abundant number, since it is smaller than the sum of its proper divisors (26712263997588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20033121223212 is a wasteful number, since it uses less digits than its factorization.

20033121223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51275005 (or 51275003 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20033121223212 its reverse (21232212133002), we get a palindrome (41265333356214).

The spelling of 20033121223212 in words is "twenty trillion, thirty-three billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred twelve".