1202110021001 has 16 divisors (see below), whose sum is σ = 1263465571968. Its totient is φ = 1141539168000.

The previous prime is 1202110020989. The next prime is 1202110021069. The reversal of 1202110021001 is 1001200112021.

It is a cyclic number.

It is not a de Polignac number, because 1202110021001 - 2¹⁰ = 1202110019977 is a prime.

It is a super-2 number, since 2×1202110021001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202110021081) 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 15 ways as a sum of consecutive naturals, for example, 1637195 + ... + 2254911.

It is an arithmetic number, because the mean of its divisors is an integer number (78966598248).

Almost surely, 2^{1202110021001} is an apocalyptic number.

It is an amenable number.

1202110021001 is a deficient number, since it is larger than the sum of its proper divisors (61355550967).

1202110021001 is a wasteful number, since it uses less digits than its factorization.

1202110021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618352.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1202110021001 its reverse (1001200112021), we get a palindrome (2203310133022).

The spelling of 1202110021001 in words is "one trillion, two hundred two billion, one hundred ten million, twenty-one thousand, one".