212401621259 has 2 divisors, whose sum is σ = 212401621260. Its totient is φ = 212401621258.

The previous prime is 212401621213. The next prime is 212401621291. The reversal of 212401621259 is 952126104212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212401621259 - 2¹² = 212401617163 is a prime.

It is a super-2 number, since 2×212401621259² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212401621759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106200810629 + 106200810630.

It is an arithmetic number, because the mean of its divisors is an integer number (106200810630).

Almost surely, 2^212401621259 is an apocalyptic number.

212401621259 is a deficient number, since it is larger than the sum of its proper divisors (1).

212401621259 is an equidigital number, since it uses as much as digits as its factorization.

212401621259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 212401621259 in words is "two hundred twelve billion, four hundred one million, six hundred twenty-one thousand, two hundred fifty-nine".