212020010002021 has 8 divisors (see below), whose sum is σ = 228685449414744. Its totient is φ = 195405457428480.

The previous prime is 212020010002007. The next prime is 212020010002033. The reversal of 212020010002021 is 120200010020212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6301631193025 + 205718378808996 = 2510305^2 + 14342886^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-212020010002021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020010001992 and 212020010002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020010002001) 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, 12721701136 + ... + 12721717801.

It is an arithmetic number, because the mean of its divisors is an integer number (28585681176843).

Almost surely, 2^{212020010002021} is an apocalyptic number.

It is an amenable number.

212020010002021 is a deficient number, since it is larger than the sum of its proper divisors (16665439412723).

212020010002021 is a wasteful number, since it uses less digits than its factorization.

212020010002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25443419591.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212020010002021 its reverse (120200010020212), we get a palindrome (332220020022233).

The spelling of 212020010002021 in words is "two hundred twelve trillion, twenty billion, ten million, two thousand, twenty-one".