212202001011021 has 16 divisors (see below), whose sum is σ = 323367527612928. Its totient is φ = 121253749729200.

The previous prime is 212202001011001. The next prime is 212202001011029. The reversal of 212202001011021 is 120110100202212.

It is not a de Polignac number, because 212202001011021 - 2⁶ = 212202001010957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202001011029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188448735 + ... + 189571436.

It is an arithmetic number, because the mean of its divisors is an integer number (20210470475808).

Almost surely, 2^{212202001011021} is an apocalyptic number.

212202001011021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212202001011021 is a deficient number, since it is larger than the sum of its proper divisors (111165526601907).

212202001011021 is a wasteful number, since it uses less digits than its factorization.

212202001011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378046912.

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

Adding to 212202001011021 its reverse (120110100202212), we get a palindrome (332312101213233).

The spelling of 212202001011021 in words is "two hundred twelve trillion, two hundred two billion, one million, eleven thousand, twenty-one".