102021222200121 has 576 divisors, whose sum is σ = 192214212503040. Its totient is φ = 50997262417920.

The previous prime is 102021222200083. The next prime is 102021222200123. The reversal of 102021222200121 is 121002222120201.

It is a happy number.

102021222200121 is a `hidden beast` number, since 1 + 0 + 202 + 122 + 220 + 0 + 121 = 666.

It is not a de Polignac number, because 102021222200121 - 2¹¹ = 102021222198073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102021222200094 and 102021222200103.

It is not an unprimeable number, because it can be changed into a prime (102021222200123) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 302733596865 + ... + 302733597201.

It is an arithmetic number, because the mean of its divisors is an integer number (333705230040).

Almost surely, 2^{102021222200121} is an apocalyptic number.

It is an amenable number.

102021222200121 is a deficient number, since it is larger than the sum of its proper divisors (90192990302919).

102021222200121 is a wasteful number, since it uses less digits than its factorization.

102021222200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102021222200121 its reverse (121002222120201), we get a palindrome (223023444320322).

The spelling of 102021222200121 in words is "one hundred two trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, one hundred twenty-one".