20331212221322 has 16 divisors (see below), whose sum is σ = 30546341780544. Its totient is φ = 10149111180000.

The previous prime is 20331212221301. The next prime is 20331212221393. The reversal of 20331212221322 is 22312221213302.

It is a super-2 number, since 2×20331212221322² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20331212221291 and 20331212221300.

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, 63179 + ... + 6377022.

It is an arithmetic number, because the mean of its divisors is an integer number (1909146361284).

Almost surely, 2^{20331212221322} is an apocalyptic number.

20331212221322 is a deficient number, since it is larger than the sum of its proper divisors (10215129559222).

20331212221322 is a wasteful number, since it uses less digits than its factorization.

20331212221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442765.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20331212221322 its reverse (22312221213302), we get a palindrome (42643433434624).

The spelling of 20331212221322 in words is "twenty trillion, three hundred thirty-one billion, two hundred twelve million, two hundred twenty-one thousand, three hundred twenty-two".