102012021222021 has 8 divisors (see below), whose sum is σ = 151128920328960. Its totient is φ = 68008014147996.

The previous prime is 102012021222017. The next prime is 102012021222071. The reversal of 102012021222021 is 120222120210201.

It is a happy number.

102012021222021 is a `hidden beast` number, since 10 + 201 + 2 + 0 + 212 + 220 + 21 = 666.

It is not a de Polignac number, because 102012021222021 - 2² = 102012021222017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012021221985 and 102012021222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012021222071) 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, 1889111504085 + ... + 1889111504138.

It is an arithmetic number, because the mean of its divisors is an integer number (18891115041120).

Almost surely, 2^{102012021222021} is an apocalyptic number.

It is an amenable number.

102012021222021 is a deficient number, since it is larger than the sum of its proper divisors (49116899106939).

102012021222021 is an equidigital number, since it uses as much as digits as its factorization.

102012021222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778223008232 (or 3778223008226 counting only the distinct ones).

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

Adding to 102012021222021 its reverse (120222120210201), we get a palindrome (222234141432222).

The spelling of 102012021222021 in words is "one hundred two trillion, twelve billion, twenty-one million, two hundred twenty-two thousand, twenty-one".