212012221202101 has 8 divisors (see below), whose sum is σ = 215493099098624. Its totient is φ = 208531513231920.

The previous prime is 212012221202029. The next prime is 212012221202123. The reversal of 212012221202101 is 101202122210212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012221202101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012221202501) 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, 39964545 + ... + 44957638.

It is an arithmetic number, because the mean of its divisors is an integer number (26936637387328).

Almost surely, 2^{212012221202101} is an apocalyptic number.

It is an amenable number.

212012221202101 is a deficient number, since it is larger than the sum of its proper divisors (3480877896523).

212012221202101 is an equidigital number, since it uses as much as digits as its factorization.

212012221202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84963171.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212012221202101 its reverse (101202122210212), we get a palindrome (313214343412313).

The spelling of 212012221202101 in words is "two hundred twelve trillion, twelve billion, two hundred twenty-one million, two hundred two thousand, one hundred one".