1353221201451 has 64 divisors (see below), whose sum is σ = 2175138201600. Its totient is φ = 732128353920.

The previous prime is 1353221201441. The next prime is 1353221201459. The reversal of 1353221201451 is 1541021223531.

It is a happy number.

It is not a de Polignac number, because 1353221201451 - 2⁵ = 1353221201419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1353221201459) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5443825 + ... + 5686973.

It is an arithmetic number, because the mean of its divisors is an integer number (33986534400).

Almost surely, 2^{1353221201451} is an apocalyptic number.

1353221201451 is a deficient number, since it is larger than the sum of its proper divisors (821917000149).

1353221201451 is a wasteful number, since it uses less digits than its factorization.

1353221201451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243376.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1353221201451 its reverse (1541021223531), we get a palindrome (2894242424982).

The spelling of 1353221201451 in words is "one trillion, three hundred fifty-three billion, two hundred twenty-one million, two hundred one thousand, four hundred fifty-one".