1270470428221 has 2 divisors, whose sum is σ = 1270470428222. Its totient is φ = 1270470428220.

The previous prime is 1270470428119. The next prime is 1270470428287. The reversal of 1270470428221 is 1228240740721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1101951968121 + 168518460100 = 1049739^2 + 410510^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270470428221 - 2¹⁷ = 1270470297149 is a prime.

It is a super-2 number, since 2×1270470428221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270470428621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635235214110 + 635235214111.

It is an arithmetic number, because the mean of its divisors is an integer number (635235214111).

Almost surely, 2^{1270470428221} is an apocalyptic number.

It is an amenable number.

1270470428221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270470428221 is an equidigital number, since it uses as much as digits as its factorization.

1270470428221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100352, while the sum is 40.

The spelling of 1270470428221 in words is "one trillion, two hundred seventy billion, four hundred seventy million, four hundred twenty-eight thousand, two hundred twenty-one".