213001220087 has 2 divisors, whose sum is σ = 213001220088. Its totient is φ = 213001220086.

The previous prime is 213001220077. The next prime is 213001220123. The reversal of 213001220087 is 780022100312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213001220087 - 2²⁴ = 212984442871 is a prime.

It is a super-2 number, since 2×213001220087² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213001220077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106500610043 + 106500610044.

It is an arithmetic number, because the mean of its divisors is an integer number (106500610044).

Almost surely, 2^213001220087 is an apocalyptic number.

213001220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

213001220087 is an equidigital number, since it uses as much as digits as its factorization.

213001220087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 213001220087 its reverse (780022100312), we get a palindrome (993023320399).

The spelling of 213001220087 in words is "two hundred thirteen billion, one million, two hundred twenty thousand, eighty-seven".