102020022201121 has 8 divisors (see below), whose sum is σ = 102458437613064. Its totient is φ = 101581611586560.

The previous prime is 102020022201079. The next prime is 102020022201127. The reversal of 102020022201121 is 121102220020201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18636825727521 + 83383196473600 = 4317039^2 + 9131440^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 102020022201121 - 2⁴⁵ = 66835650112289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020022201095 and 102020022201104.

It is not an unprimeable number, because it can be changed into a prime (102020022201127) 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, 45286185 + ... + 47485561.

It is an arithmetic number, because the mean of its divisors is an integer number (12807304701633).

Almost surely, 2^{102020022201121} is an apocalyptic number.

It is an amenable number.

102020022201121 is a deficient number, since it is larger than the sum of its proper divisors (438415411943).

102020022201121 is a wasteful number, since it uses less digits than its factorization.

102020022201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398691.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102020022201121 its reverse (121102220020201), we get a palindrome (223122242221322).

The spelling of 102020022201121 in words is "one hundred two trillion, twenty billion, twenty-two million, two hundred one thousand, one hundred twenty-one".