102212333023421 has 2 divisors, whose sum is σ = 102212333023422. Its totient is φ = 102212333023420.

The previous prime is 102212333023369. The next prime is 102212333023441. The reversal of 102212333023421 is 124320333212201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72243387151321 + 29968945872100 = 8499611^2 + 5474390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102212333023421 is a prime.

It is a super-2 number, since 2×102212333023421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212333023441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106166511710 + 51106166511711.

It is an arithmetic number, because the mean of its divisors is an integer number (51106166511711).

Almost surely, 2^{102212333023421} is an apocalyptic number.

It is an amenable number.

102212333023421 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212333023421 is an equidigital number, since it uses as much as digits as its factorization.

102212333023421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 102212333023421 its reverse (124320333212201), we get a palindrome (226532666235622).

The spelling of 102212333023421 in words is "one hundred two trillion, two hundred twelve billion, three hundred thirty-three million, twenty-three thousand, four hundred twenty-one".