20020212211021 has 8 divisors (see below), whose sum is σ = 21840889521888. Its totient is φ = 18199644570000.

The previous prime is 20020212211019. The next prime is 20020212211031. The reversal of 20020212211021 is 12011221202002.

It is a happy number.

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 20020212211021 - 2¹ = 20020212211019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020212210986 and 20020212211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020212211001) 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, 27035530 + ... + 27766171.

It is an arithmetic number, because the mean of its divisors is an integer number (2730111190236).

Almost surely, 2^{20020212211021} is an apocalyptic number.

It is an amenable number.

20020212211021 is a deficient number, since it is larger than the sum of its proper divisors (1820677310867).

20020212211021 is a wasteful number, since it uses less digits than its factorization.

20020212211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54834923.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20020212211021 its reverse (12011221202002), we get a palindrome (32031433413023).

The spelling of 20020212211021 in words is "twenty trillion, twenty billion, two hundred twelve million, two hundred eleven thousand, twenty-one".