1202200120021 has 8 divisors (see below), whose sum is σ = 1206926557760. Its totient is φ = 1197478945728.

The previous prime is 1202200120019. The next prime is 1202200120063. The reversal of 1202200120021 is 1200210022021.

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 1202200120021 - 2¹ = 1202200120019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202200119983 and 1202200120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202200120321) 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, 857841 + ... + 1772086.

It is an arithmetic number, because the mean of its divisors is an integer number (150865819720).

Almost surely, 2^{1202200120021} is an apocalyptic number.

It is an amenable number.

1202200120021 is a deficient number, since it is larger than the sum of its proper divisors (4726437739).

1202200120021 is a wasteful number, since it uses less digits than its factorization.

1202200120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631723.

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

Adding to 1202200120021 its reverse (1200210022021), we get a palindrome (2402410142042).

The spelling of 1202200120021 in words is "one trillion, two hundred two billion, two hundred million, one hundred twenty thousand, twenty-one".