102020221001 has 8 divisors (see below), whose sum is σ = 105318038784. Its totient is φ = 98722830960.

The previous prime is 102020220989. The next prime is 102020221013. The reversal of 102020221001 is 100122020201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102020220989) and next prime (102020221013).

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 102020221001 - 2¹⁸ = 102019958857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102020221201) 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, 418910 + ... + 616056.

It is an arithmetic number, because the mean of its divisors is an integer number (13164754848).

Almost surely, 2^102020221001 is an apocalyptic number.

It is an amenable number.

102020221001 is a deficient number, since it is larger than the sum of its proper divisors (3297817783).

102020221001 is a wasteful number, since it uses less digits than its factorization.

102020221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213871.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102020221001 its reverse (100122020201), we get a palindrome (202142241202).

The spelling of 102020221001 in words is "one hundred two billion, twenty million, two hundred twenty-one thousand, one".