201121022002 has 8 divisors (see below), whose sum is σ = 302998920300. Its totient is φ = 100121381904.

The previous prime is 201121021991. The next prime is 201121022077. The reversal of 201121022002 is 200220121102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 191074768641 + 10046253361 = 437121^2 + 100231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×201121022002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219563977 + ... + 219564892.

Almost surely, 2^201121022002 is an apocalyptic number.

201121022002 is a deficient number, since it is larger than the sum of its proper divisors (101877898298).

201121022002 is a wasteful number, since it uses less digits than its factorization.

201121022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439129100.

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

Adding to 201121022002 its reverse (200220121102), we get a palindrome (401341143104).

The spelling of 201121022002 in words is "two hundred one billion, one hundred twenty-one million, twenty-two thousand, two".