1401231022500 has 60 divisors (see below), whose sum is σ = 4085616021872. Its totient is φ = 373661604000.

The previous prime is 1401231022481. The next prime is 1401231022507. The reversal of 1401231022500 is 52201321041.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (1401231022507) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 93407902 + ... + 93422901.

Almost surely, 2^{1401231022500} is an apocalyptic number.

1401231022500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401231022500 is an abundant number, since it is smaller than the sum of its proper divisors (2684384999372).

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

1401231022500 is a wasteful number, since it uses less digits than its factorization.

1401231022500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186830830 (or 186830813 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1401231022500 its reverse (52201321041), we get a palindrome (1453432343541).

The spelling of 1401231022500 in words is "one trillion, four hundred one billion, two hundred thirty-one million, twenty-two thousand, five hundred".