1220211021301 has 2 divisors, whose sum is σ = 1220211021302. Its totient is φ = 1220211021300.

The previous prime is 1220211021233. The next prime is 1220211021329. The reversal of 1220211021301 is 1031201120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723222680625 + 496988340676 = 850425^2 + 704974^2 .

It is an emirp because it is prime and its reverse (1031201120221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220211021301 - 2¹⁹ = 1220210497013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220211021101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610105510650 + 610105510651.

It is an arithmetic number, because the mean of its divisors is an integer number (610105510651).

Almost surely, 2^{1220211021301} is an apocalyptic number.

It is an amenable number.

1220211021301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220211021301 is an equidigital number, since it uses as much as digits as its factorization.

1220211021301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1220211021301 its reverse (1031201120221), we get a palindrome (2251412141522).

The spelling of 1220211021301 in words is "one trillion, two hundred twenty billion, two hundred eleven million, twenty-one thousand, three hundred one".