331123020021222 has 64 divisors (see below), whose sum is σ = 818971915587840. Its totient is φ = 87746990947200.

The previous prime is 331123020021181. The next prime is 331123020021239. The reversal of 331123020021222 is 222120020321133.

It is a super-2 number, since 2×331123020021222² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331123020021192 and 331123020021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10155885429 + ... + 10155918032.

It is an arithmetic number, because the mean of its divisors is an integer number (12796436181060).

Almost surely, 2^{331123020021222} is an apocalyptic number.

331123020021222 is an abundant number, since it is smaller than the sum of its proper divisors (487848895566618).

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

331123020021222 is a wasteful number, since it uses less digits than its factorization.

331123020021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20311803509.

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

Adding to 331123020021222 its reverse (222120020321133), we get a palindrome (553243040342355).

The spelling of 331123020021222 in words is "three hundred thirty-one trillion, one hundred twenty-three billion, twenty million, twenty-one thousand, two hundred twenty-two".