212220011101 has 8 divisors (see below), whose sum is σ = 242557565760. Its totient is φ = 181887559008.

The previous prime is 212220011057. The next prime is 212220011131. The reversal of 212220011101 is 101110022212.

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

It is a cyclic number.

It is not a de Polignac number, because 212220011101 - 2¹⁷ = 212219880029 is a prime.

It is a super-2 number, since 2×212220011101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220011131) 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, 1186096 + ... + 1353241.

It is an arithmetic number, because the mean of its divisors is an integer number (30319695720).

Almost surely, 2^212220011101 is an apocalyptic number.

It is an amenable number.

212220011101 is a deficient number, since it is larger than the sum of its proper divisors (30337554659).

212220011101 is a wasteful number, since it uses less digits than its factorization.

212220011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551283.

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

Adding to 212220011101 its reverse (101110022212), we get a palindrome (313330033313).

The spelling of 212220011101 in words is "two hundred twelve billion, two hundred twenty million, eleven thousand, one hundred one".