20120021022001 has 8 divisors (see below), whose sum is σ = 21306029270400. Its totient is φ = 18934288062528.

The previous prime is 20120021021999. The next prime is 20120021022043. The reversal of 20120021022001 is 10022012002102.

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 20120021022001 - 2¹ = 20120021021999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120021022301) 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, 68671741 + ... + 68964106.

It is an arithmetic number, because the mean of its divisors is an integer number (2663253658800).

Almost surely, 2^{20120021022001} is an apocalyptic number.

It is an amenable number.

20120021022001 is a deficient number, since it is larger than the sum of its proper divisors (1186008248399).

20120021022001 is a wasteful number, since it uses less digits than its factorization.

20120021022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137644463.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20120021022001 its reverse (10022012002102), we get a palindrome (30142033024103).

The spelling of 20120021022001 in words is "twenty trillion, one hundred twenty billion, twenty-one million, twenty-two thousand, one".