201021021001202 has 4 divisors (see below), whose sum is σ = 301531531501806. Its totient is φ = 100510510500600.

The previous prime is 201021021001187. The next prime is 201021021001277. The reversal of 201021021001202 is 202100120120102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191676022673521 + 9344998327681 = 13844711^2 + 3056959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50255255250299 + ... + 50255255250302.

Almost surely, 2^{201021021001202} is an apocalyptic number.

201021021001202 is a deficient number, since it is larger than the sum of its proper divisors (100510510500604).

201021021001202 is a wasteful number, since it uses less digits than its factorization.

201021021001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100510510500603.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201021021001202 its reverse (202100120120102), we get a palindrome (403121141121304).

The spelling of 201021021001202 in words is "two hundred one trillion, twenty-one billion, twenty-one million, one thousand, two hundred two".