212002001121021 has 8 divisors (see below), whose sum is σ = 282781017704544. Its totient is φ = 141278825975760.

The previous prime is 212002001121017. The next prime is 212002001121023. The reversal of 212002001121021 is 120121100200212.

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

It is not a de Polignac number, because 212002001121021 - 2² = 212002001121017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002001121023) 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, 13960350706 + ... + 13960365891.

It is an arithmetic number, because the mean of its divisors is an integer number (35347627213068).

Almost surely, 2^{212002001121021} is an apocalyptic number.

It is an amenable number.

212002001121021 is a deficient number, since it is larger than the sum of its proper divisors (70779016583523).

212002001121021 is a wasteful number, since it uses less digits than its factorization.

212002001121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27920719131.

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

Adding to 212002001121021 its reverse (120121100200212), we get a palindrome (332123101321233).

It can be divided in two parts, 21200200 and 1121021, that added together give a triangular number (22321221 = T₆₆₈₁).

The spelling of 212002001121021 in words is "two hundred twelve trillion, two billion, one million, one hundred twenty-one thousand, twenty-one".