212011000122021 has 8 divisors (see below), whose sum is σ = 282686824045824. Its totient is φ = 141337921473120.

The previous prime is 212011000121959. The next prime is 212011000122023. The reversal of 212011000122021 is 120221000110212.

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

It is not a de Polignac number, because 212011000122021 - 2²¹ = 212010998024869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011000122023) 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, 686138520 + ... + 686447441.

It is an arithmetic number, because the mean of its divisors is an integer number (35335853005728).

Almost surely, 2^{212011000122021} is an apocalyptic number.

It is an amenable number.

212011000122021 is a deficient number, since it is larger than the sum of its proper divisors (70675823923803).

212011000122021 is a wasteful number, since it uses less digits than its factorization.

212011000122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372637451.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212011000122021 its reverse (120221000110212), we get a palindrome (332232000232233).

The spelling of 212011000122021 in words is "two hundred twelve trillion, eleven billion, one hundred twenty-two thousand, twenty-one".