212001020102021 has 8 divisors (see below), whose sum is σ = 212887723861824. Its totient is φ = 211114374454080.

The previous prime is 212001020102009. The next prime is 212001020102041. The reversal of 212001020102021 is 120201020100212.

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 212001020102021 - 2²² = 212001015907717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212001020101987 and 212001020102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001020102041) 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, 7208705 + ... + 21816678.

It is an arithmetic number, because the mean of its divisors is an integer number (26610965482728).

Almost surely, 2^{212001020102021} is an apocalyptic number.

It is an amenable number.

212001020102021 is a deficient number, since it is larger than the sum of its proper divisors (886703759803).

212001020102021 is a wasteful number, since it uses less digits than its factorization.

212001020102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29055931.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212001020102021 its reverse (120201020100212), we get a palindrome (332202040202233).

The spelling of 212001020102021 in words is "two hundred twelve trillion, one billion, twenty million, one hundred two thousand, twenty-one".