101221202022002 has 16 divisors (see below), whose sum is σ = 152145339042840. Its totient is φ = 50506185647232.

The previous prime is 101221202022001. The next prime is 101221202022019. The reversal of 101221202022002 is 200220202122101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97776321252481 + 3444880769521 = 9888191^2 + 1856039^2 .

It is not an unprimeable number, because it can be changed into a prime (101221202022001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22063883 + ... + 26253710.

Almost surely, 2^{101221202022002} is an apocalyptic number.

101221202022002 is a deficient number, since it is larger than the sum of its proper divisors (50924137020838).

101221202022002 is a wasteful number, since it uses less digits than its factorization.

101221202022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48319757.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101221202022002 its reverse (200220202122101), we get a palindrome (301441404144103).

The spelling of 101221202022002 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred two million, twenty-two thousand, two".