1021455242400 has 144 divisors (see below), whose sum is σ = 3325159863648. Its totient is φ = 272361600000.

The previous prime is 1021455242393. The next prime is 1021455242447. The reversal of 1021455242400 is 42425541201.

1021455242400 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46311375 + ... + 46333425.

It is an arithmetic number, because the mean of its divisors is an integer number (23091387942).

Almost surely, 2^{1021455242400} is an apocalyptic number.

1021455242400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021455242400 is an abundant number, since it is smaller than the sum of its proper divisors (2303704621248).

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

1021455242400 is a wasteful number, since it uses less digits than its factorization.

1021455242400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41375 (or 41362 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 1021455242400 in words is "one trillion, twenty-one billion, four hundred fifty-five million, two hundred forty-two thousand, four hundred".