1421102001 has 8 divisors (see below), whose sum is σ = 2067057504. Its totient is φ = 861273920.

The previous prime is 1421101999. The next prime is 1421102009. The reversal of 1421102001 is 1002011241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421102001 - 2¹ = 1421101999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1421102009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21531816 + ... + 21531881.

It is an arithmetic number, because the mean of its divisors is an integer number (258382188).

Almost surely, 2^1421102001 is an apocalyptic number.

1421102001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1421102001 is a deficient number, since it is larger than the sum of its proper divisors (645955503).

1421102001 is a wasteful number, since it uses less digits than its factorization.

1421102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43063711.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1421102001 is about 37697.5065621057. The cubic root of 1421102001 is about 1124.2815497731.

Adding to 1421102001 its reverse (1002011241), we get a palindrome (2423113242).

The spelling of 1421102001 in words is "one billion, four hundred twenty-one million, one hundred two thousand, one".