1210000020001 has 8 divisors (see below), whose sum is σ = 1275231859520. Its totient is φ = 1144922943312.

The previous prime is 1210000019981. The next prime is 1210000020071. The reversal of 1210000020001 is 1000200000121.

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 1210000020001 - 2¹⁹ = 1209999495713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210000020071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38674650 + ... + 38705923.

It is an arithmetic number, because the mean of its divisors is an integer number (159403982440).

Almost surely, 2^{1210000020001} is an apocalyptic number.

It is an amenable number.

1210000020001 is a deficient number, since it is larger than the sum of its proper divisors (65231839519).

1210000020001 is an equidigital number, since it uses as much as digits as its factorization.

1210000020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77381415.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1210000020001 its reverse (1000200000121), we get a palindrome (2210200020122).

The spelling of 1210000020001 in words is "one trillion, two hundred ten billion, twenty thousand, one".