212212010101 has 32 divisors (see below), whose sum is σ = 270165593600. Its totient is φ = 165603699072.

The previous prime is 212212010099. The next prime is 212212010117. The reversal of 212212010101 is 101010212212.

It is not a de Polignac number, because 212212010101 - 2¹ = 212212010099 is a prime.

It is a super-2 number, since 2×212212010101² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212020101) 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, 465 + ... + 651478.

It is an arithmetic number, because the mean of its divisors is an integer number (8442674800).

Almost surely, 2^212212010101 is an apocalyptic number.

It is an amenable number.

212212010101 is a deficient number, since it is larger than the sum of its proper divisors (57953583499).

212212010101 is an equidigital number, since it uses as much as digits as its factorization.

212212010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652050 (or 652036 counting only the distinct ones).

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

Adding to 212212010101 its reverse (101010212212), we get a palindrome (313222222313).

The spelling of 212212010101 in words is "two hundred twelve billion, two hundred twelve million, ten thousand, one hundred one".