22203312221012 has 24 divisors (see below), whose sum is σ = 41845267989000. Its totient is φ = 10247544395136.

The previous prime is 22203312221011. The next prime is 22203312221029. The reversal of 22203312221012 is 21012221330222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 140808059536 + 22062504161476 = 375244^2 + 4697074^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203312221011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066814 + ... + 6748682.

It is an arithmetic number, because the mean of its divisors is an integer number (1743552832875).

Almost surely, 2^{22203312221012} is an apocalyptic number.

It is an amenable number.

22203312221012 is a deficient number, since it is larger than the sum of its proper divisors (19641955767988).

22203312221012 is a wasteful number, since it uses less digits than its factorization.

22203312221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757035 (or 5757033 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22203312221012 its reverse (21012221330222), we get a palindrome (43215533551234).

The spelling of 22203312221012 in words is "twenty-two trillion, two hundred three billion, three hundred twelve million, two hundred twenty-one thousand, twelve".