141201321221 has 2 divisors, whose sum is σ = 141201321222. Its totient is φ = 141201321220.

The previous prime is 141201321179. The next prime is 141201321259. The reversal of 141201321221 is 122123102141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121316373025 + 19884948196 = 348305^2 + 141014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141201321221 is a prime.

It is a super-2 number, since 2×141201321221² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 141201321193 and 141201321202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141201321281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70600660610 + 70600660611.

It is an arithmetic number, because the mean of its divisors is an integer number (70600660611).

Almost surely, 2^141201321221 is an apocalyptic number.

It is an amenable number.

141201321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

141201321221 is an equidigital number, since it uses as much as digits as its factorization.

141201321221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 141201321221 its reverse (122123102141), we get a palindrome (263324423362).

The spelling of 141201321221 in words is "one hundred forty-one billion, two hundred one million, three hundred twenty-one thousand, two hundred twenty-one".