202221021012187 has 2 divisors, whose sum is σ = 202221021012188. Its totient is φ = 202221021012186.

The previous prime is 202221021012103. The next prime is 202221021012233. The reversal of 202221021012187 is 781210120122202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202221021012187 is a prime.

It is a super-2 number, since 2×202221021012187² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202221021010187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110510506093 + 101110510506094.

It is an arithmetic number, because the mean of its divisors is an integer number (101110510506094).

Almost surely, 2^{202221021012187} is an apocalyptic number.

202221021012187 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221021012187 is an equidigital number, since it uses as much as digits as its factorization.

202221021012187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

Adding to 202221021012187 its reverse (781210120122202), we get a palindrome (983431141134389).

The spelling of 202221021012187 in words is "two hundred two trillion, two hundred twenty-one billion, twenty-one million, twelve thousand, one hundred eighty-seven".