102202111022021 has 8 divisors (see below), whose sum is σ = 102259743356184. Its totient is φ = 102144479673600.

The previous prime is 102202111022003. The next prime is 102202111022113. The reversal of 102202111022021 is 120220111202201.

It can be written as a sum of positive squares in 4 ways, for example, as 376130757025 + 101825980264996 = 613295^2 + 10090886^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102202111022021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202111027021) 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, 334900121 + ... + 335205153.

It is an arithmetic number, because the mean of its divisors is an integer number (12782467919523).

Almost surely, 2^{102202111022021} is an apocalyptic number.

It is an amenable number.

102202111022021 is a deficient number, since it is larger than the sum of its proper divisors (57632334163).

102202111022021 is a wasteful number, since it uses less digits than its factorization.

102202111022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492871.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102202111022021 its reverse (120220111202201), we get a palindrome (222422222224222).

The spelling of 102202111022021 in words is "one hundred two trillion, two hundred two billion, one hundred eleven million, twenty-two thousand, twenty-one".