102212201311321 has 4 divisors (see below), whose sum is σ = 104974693238692. Its totient is φ = 99449709383952.

The previous prime is 102212201311313. The next prime is 102212201311373. The reversal of 102212201311321 is 123113102212201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87691612784400 + 14520588526921 = 9364380^2 + 3810589^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212201311321 - 2³ = 102212201311313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102212201311292 and 102212201311301.

It is not an unprimeable number, because it can be changed into a prime (102212201311391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381245963630 + ... + 1381245963703.

It is an arithmetic number, because the mean of its divisors is an integer number (26243673309673).

Almost surely, 2^{102212201311321} is an apocalyptic number.

It is an amenable number.

102212201311321 is a deficient number, since it is larger than the sum of its proper divisors (2762491927371).

102212201311321 is an equidigital number, since it uses as much as digits as its factorization.

102212201311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762491927370.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 102212201311321 its reverse (123113102212201), we get a palindrome (225325303523522).

The spelling of 102212201311321 in words is "one hundred two trillion, two hundred twelve billion, two hundred one million, three hundred eleven thousand, three hundred twenty-one".