212001211220001 has 32 divisors (see below), whose sum is σ = 337097936179200. Its totient is φ = 115875461300544.

The previous prime is 212001211219913. The next prime is 212001211220011. The reversal of 212001211220001 is 100022112100212.

It is not a de Polignac number, because 212001211220001 - 2¹⁰ = 212001211218977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212001211220011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57452100 + ... + 61030698.

It is an arithmetic number, because the mean of its divisors is an integer number (10534310505600).

Almost surely, 2^{212001211220001} is an apocalyptic number.

212001211220001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212001211220001 is a deficient number, since it is larger than the sum of its proper divisors (125096724959199).

212001211220001 is a wasteful number, since it uses less digits than its factorization.

212001211220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701285.

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

Adding to 212001211220001 its reverse (100022112100212), we get a palindrome (312023323320213).

The spelling of 212001211220001 in words is "two hundred twelve trillion, one billion, two hundred eleven million, two hundred twenty thousand, one".