101221259 has 2 divisors, whose sum is σ = 101221260. Its totient is φ = 101221258.

The previous prime is 101221201. The next prime is 101221273. The reversal of 101221259 is 952122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221259 - 2¹⁶ = 101155723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101221279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610629 + 50610630.

It is an arithmetic number, because the mean of its divisors is an integer number (50610630).

Almost surely, 2^101221259 is an apocalyptic number.

101221259 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221259 is an equidigital number, since it uses as much as digits as its factorization.

101221259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 101221259 is about 10060.8776456132. The cubic root of 101221259 is about 466.0407705001.

The spelling of 101221259 in words is "one hundred one million, two hundred twenty-one thousand, two hundred fifty-nine".