1214001000421 has 4 divisors (see below), whose sum is σ = 1324364727744. Its totient is φ = 1103637273100.

The previous prime is 1214001000397. The next prime is 1214001000461. The reversal of 1214001000421 is 1240001004121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1214001000421 - 2⁵ = 1214001000389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214001000395 and 1214001000404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214001000461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55181863645 + ... + 55181863666.

It is an arithmetic number, because the mean of its divisors is an integer number (331091181936).

Almost surely, 2^{1214001000421} is an apocalyptic number.

1214001000421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1214001000421 is a deficient number, since it is larger than the sum of its proper divisors (110363727323).

1214001000421 is a wasteful number, since it uses less digits than its factorization.

1214001000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110363727322.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1214001000421 its reverse (1240001004121), we get a palindrome (2454002004542).

The spelling of 1214001000421 in words is "one trillion, two hundred fourteen billion, one million, four hundred twenty-one", and thus it is an aban number.