1220410421454 has 32 divisors (see below), whose sum is σ = 2789555569920. Its totient is φ = 348682937472.

The previous prime is 1220410421393. The next prime is 1220410421471. The reversal of 1220410421454 is 4541240140221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2784237 + ... + 3192615.

It is an arithmetic number, because the mean of its divisors is an integer number (87173611560).

Almost surely, 2^{1220410421454} is an apocalyptic number.

1220410421454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220410421454 is an abundant number, since it is smaller than the sum of its proper divisors (1569145148466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220410421454 is a wasteful number, since it uses less digits than its factorization.

1220410421454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479544.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 1220410421454 its reverse (4541240140221), we get a palindrome (5761650561675).

The spelling of 1220410421454 in words is "one trillion, two hundred twenty billion, four hundred ten million, four hundred twenty-one thousand, four hundred fifty-four".