102020212231001 has 4 divisors (see below), whose sum is σ = 102020232988212. Its totient is φ = 102020191473792.

The previous prime is 102020212230983. The next prime is 102020212231037. The reversal of 102020212231001 is 100132212020201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66148210254025 + 35872001976976 = 8133155^2 + 5989324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102020212231001 is a prime.

It is a super-3 number, since 3×102020212231001³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020212231501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609601 + ... + 14374673.

It is an arithmetic number, because the mean of its divisors is an integer number (25505058247053).

Almost surely, 2^{102020212231001} is an apocalyptic number.

It is an amenable number.

102020212231001 is a deficient number, since it is larger than the sum of its proper divisors (20757211).

102020212231001 is an equidigital number, since it uses as much as digits as its factorization.

102020212231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20757210.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 102020212231001 its reverse (100132212020201), we get a palindrome (202152424251202).

The spelling of 102020212231001 in words is "one hundred two trillion, twenty billion, two hundred twelve million, two hundred thirty-one thousand, one".