1421371055250 has 96 divisors (see below), whose sum is σ = 3846472110000. Its totient is φ = 378728064000.

The previous prime is 1421371055243. The next prime is 1421371055257. The reversal of 1421371055250 is 525501731241.

1421371055250 is a `hidden beast` number, since 1 + 4 + 21 + 3 + 7 + 105 + 525 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1421371055243) and next prime (1421371055257).

It can be written as a sum of positive squares in 8 ways, for example, as 290651452641 + 1130719602609 = 539121^2 + 1063353^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421371055257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2557360 + ... + 3063140.

Almost surely, 2^{1421371055250} is an apocalyptic number.

1421371055250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421371055250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923236055000).

1421371055250 is an abundant number, since it is smaller than the sum of its proper divisors (2425101054750).

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

1421371055250 is a wasteful number, since it uses less digits than its factorization.

1421371055250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507053 (or 507040 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 1421371055250 its reverse (525501731241), we get a palindrome (1946872786491).

The spelling of 1421371055250 in words is "one trillion, four hundred twenty-one billion, three hundred seventy-one million, fifty-five thousand, two hundred fifty".