1421228462400 has 252 divisors, whose sum is σ = 5238471160832. Its totient is φ = 378994152960.

The previous prime is 1421228462351. The next prime is 1421228462429. The reversal of 1421228462400 is 42648221241.

1421228462400 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 2 + 28 + 4 + 624 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1438912 + ... + 2216511.

Almost surely, 2^{1421228462400} is an apocalyptic number.

1421228462400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421228462400 is an abundant number, since it is smaller than the sum of its proper divisors (3817242698432).

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

1421228462400 is an equidigital number, since it uses as much as digits as its factorization.

1421228462400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655460 (or 3655433 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 1421228462400 in words is "one trillion, four hundred twenty-one billion, two hundred twenty-eight million, four hundred sixty-two thousand, four hundred".