1020212219973 has 4 divisors (see below), whose sum is σ = 1360282959968. Its totient is φ = 680141479980.

The previous prime is 1020212219947. The next prime is 1020212220023. The reversal of 1020212219973 is 3799122120201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1020212219973 - 2⁸ = 1020212219717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212219773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170035369993 + ... + 170035369998.

It is an arithmetic number, because the mean of its divisors is an integer number (340070739992).

Almost surely, 2^{1020212219973} is an apocalyptic number.

It is an amenable number.

1020212219973 is a deficient number, since it is larger than the sum of its proper divisors (340070739995).

1020212219973 is an equidigital number, since it uses as much as digits as its factorization.

1020212219973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340070739994.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 1020212219973 in words is "one trillion, twenty billion, two hundred twelve million, two hundred nineteen thousand, nine hundred seventy-three".