1202102021001 has 32 divisors (see below), whose sum is σ = 1834121318400. Its totient is φ = 686035840896.

The previous prime is 1202102020969. The next prime is 1202102021027. The reversal of 1202102021001 is 1001202012021.

It is not a de Polignac number, because 1202102021001 - 2⁵ = 1202102020969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1202102021201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86060320 + ... + 86074286.

It is an arithmetic number, because the mean of its divisors is an integer number (57316291200).

Almost surely, 2^{1202102021001} is an apocalyptic number.

It is an amenable number.

1202102021001 is a deficient number, since it is larger than the sum of its proper divisors (632019297399).

1202102021001 is a wasteful number, since it uses less digits than its factorization.

1202102021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18933.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1202102021001 its reverse (1001202012021), we get a palindrome (2203304033022).

The spelling of 1202102021001 in words is "one trillion, two hundred two billion, one hundred two million, twenty-one thousand, one".