212002001020111 has 4 divisors (see below), whose sum is σ = 212019607709424. Its totient is φ = 211984394330800.

The previous prime is 212002001020013. The next prime is 212002001020181. The reversal of 212002001020111 is 111020100200212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212002001020111 - 2²³ = 212001992631503 is a prime.

It is a super-2 number, since 2×212002001020111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212002001020091 and 212002001020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002001020181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8803326595 + ... + 8803350676.

It is an arithmetic number, because the mean of its divisors is an integer number (53004901927356).

Almost surely, 2^{212002001020111} is an apocalyptic number.

212002001020111 is a deficient number, since it is larger than the sum of its proper divisors (17606689313).

212002001020111 is a wasteful number, since it uses less digits than its factorization.

212002001020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17606689312.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212002001020111 its reverse (111020100200212), we get a palindrome (323022101220323).

The spelling of 212002001020111 in words is "two hundred twelve trillion, two billion, one million, twenty thousand, one hundred eleven".