1354145222421 has 12 divisors (see below), whose sum is σ = 1992892969548. Its totient is φ = 885730208064.

The previous prime is 1354145222413. The next prime is 1354145222431. The reversal of 1354145222421 is 1242225414531.

1354145222421 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 1 + 4 + 5 + 222 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1113628541796 + 240516680625 = 1055286^2 + 490425^2 .

It is not a de Polignac number, because 1354145222421 - 2³ = 1354145222413 is a prime.

It is a super-2 number, since 2×1354145222421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354145222431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1419438960 + ... + 1419439913.

It is an arithmetic number, because the mean of its divisors is an integer number (166074414129).

Almost surely, 2^{1354145222421} is an apocalyptic number.

It is an amenable number.

1354145222421 is a deficient number, since it is larger than the sum of its proper divisors (638747747127).

1354145222421 is a wasteful number, since it uses less digits than its factorization.

1354145222421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838878932 (or 2838878929 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 1354145222421 in words is "one trillion, three hundred fifty-four billion, one hundred forty-five million, two hundred twenty-two thousand, four hundred twenty-one".