201022121002 has 4 divisors (see below), whose sum is σ = 301533181506. Its totient is φ = 100511060500.

The previous prime is 201022120997. The next prime is 201022121023. The reversal of 201022121002 is 200121220102.

It is a happy number.

201022121002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 120491600161 + 80530520841 = 347119^2 + 283779^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50255530249 + ... + 50255530252.

Almost surely, 2^201022121002 is an apocalyptic number.

201022121002 is a deficient number, since it is larger than the sum of its proper divisors (100511060504).

201022121002 is a wasteful number, since it uses less digits than its factorization.

201022121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100511060503.

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

Adding to 201022121002 its reverse (200121220102), we get a palindrome (401143341104).

The spelling of 201022121002 in words is "two hundred one billion, twenty-two million, one hundred twenty-one thousand, two".