1201024201021 has 8 divisors (see below), whose sum is σ = 1272017283264. Its totient is φ = 1130069407680.

The previous prime is 1201024200989. The next prime is 1201024201049.

1201024201021 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 1201024201021 - 2⁵ = 1201024200989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201024200986 and 1201024201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201024201721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9507625 + ... + 9633118.

It is an arithmetic number, because the mean of its divisors is an integer number (159002160408).

Almost surely, 2^{1201024201021} is an apocalyptic number.

It is an amenable number.

1201024201021 is a deficient number, since it is larger than the sum of its proper divisors (70993082243).

1201024201021 is a wasteful number, since it uses less digits than its factorization.

1201024201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19144451.

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

The spelling of 1201024201021 in words is "one trillion, two hundred one billion, twenty-four million, two hundred one thousand, twenty-one".