212202010001021 has 4 divisors (see below), whose sum is σ = 223370536843200. Its totient is φ = 201033483158844.

The previous prime is 212202010000913. The next prime is 212202010001053. The reversal of 212202010001021 is 120100010202212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212202010001021 - 2³⁴ = 212184830131837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212202010000987 and 212202010001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202010001071) 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, 5584263421061 + ... + 5584263421098.

It is an arithmetic number, because the mean of its divisors is an integer number (55842634210800).

Almost surely, 2^{212202010001021} is an apocalyptic number.

It is an amenable number.

212202010001021 is a deficient number, since it is larger than the sum of its proper divisors (11168526842179).

212202010001021 is a wasteful number, since it uses less digits than its factorization.

212202010001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11168526842178.

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

Adding to 212202010001021 its reverse (120100010202212), we get a palindrome (332302020203233).

The spelling of 212202010001021 in words is "two hundred twelve trillion, two hundred two billion, ten million, one thousand, twenty-one".