211321030223012 has 6 divisors (see below), whose sum is σ = 369811802890278. Its totient is φ = 105660515111504.

The previous prime is 211321030222993. The next prime is 211321030223057. The reversal of 211321030223012 is 210322030123112.

It can be written as a sum of positive squares in only one way, i.e., 154560989249536 + 56760040973476 = 12432256^2 + 7533926^2 .

It is a super-2 number, since 2×211321030223012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26415128777873 + ... + 26415128777880.

It is an arithmetic number, because the mean of its divisors is an integer number (61635300481713).

Almost surely, 2^{211321030223012} is an apocalyptic number.

It is an amenable number.

211321030223012 is a deficient number, since it is larger than the sum of its proper divisors (158490772667266).

211321030223012 is a wasteful number, since it uses less digits than its factorization.

211321030223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52830257555757 (or 52830257555755 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 211321030223012 its reverse (210322030123112), we get a palindrome (421643060346124).

The spelling of 211321030223012 in words is "two hundred eleven trillion, three hundred twenty-one billion, thirty million, two hundred twenty-three thousand, twelve".