1021422404000 has 96 divisors (see below), whose sum is σ = 2511880652736. Its totient is φ = 408203347200.

The previous prime is 1021422403993. The next prime is 1021422404039. The reversal of 1021422404000 is 4042241201.

It is a super-3 number, since 3×1021422404000³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 4378307 + ... + 4605693.

It is an arithmetic number, because the mean of its divisors is an integer number (26165423466).

Almost surely, 2^{1021422404000} is an apocalyptic number.

1021422404000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021422404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255940326368).

1021422404000 is an abundant number, since it is smaller than the sum of its proper divisors (1490458248736).

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

1021422404000 is a wasteful number, since it uses less digits than its factorization.

1021422404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228535 (or 228517 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1021422404000 its reverse (4042241201), we get a palindrome (1025464645201).

The spelling of 1021422404000 in words is "one trillion, twenty-one billion, four hundred twenty-two million, four hundred four thousand".