1401150221 has 2 divisors, whose sum is σ = 1401150222. Its totient is φ = 1401150220.

The previous prime is 1401150211. The next prime is 1401150293. The reversal of 1401150221 is 1220511041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1297008196 + 104142025 = 36014^2 + 10205^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401150221 - 2¹⁴ = 1401133837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401150221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401150211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700575110 + 700575111.

It is an arithmetic number, because the mean of its divisors is an integer number (700575111).

Almost surely, 2^1401150221 is an apocalyptic number.

It is an amenable number.

1401150221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401150221 is an equidigital number, since it uses as much as digits as its factorization.

1401150221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1401150221 is about 37431.9411866390. The cubic root of 1401150221 is about 1118.9952247683.

Adding to 1401150221 its reverse (1220511041), we get a palindrome (2621661262).

The spelling of 1401150221 in words is "one billion, four hundred one million, one hundred fifty thousand, two hundred twenty-one".