13212220035 has 32 divisors (see below), whose sum is σ = 24185452032. Its totient is φ = 6033381120.

The previous prime is 13212220009. The next prime is 13212220039. The reversal of 13212220035 is 53002221231.

It is not a de Polignac number, because 13212220035 - 2⁵ = 13212220003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13212219993 and 13212220020.

It is not an unprimeable number, because it can be changed into a prime (13212220039) 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, 31240 + ... + 165530.

It is an arithmetic number, because the mean of its divisors is an integer number (755795376).

Almost surely, 2^13212220035 is an apocalyptic number.

13212220035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13212220035 is a deficient number, since it is larger than the sum of its proper divisors (10973231997).

13212220035 is a wasteful number, since it uses less digits than its factorization.

13212220035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135243.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 13212220035 its reverse (53002221231), we get a palindrome (66214441266).

The spelling of 13212220035 in words is "thirteen billion, two hundred twelve million, two hundred twenty thousand, thirty-five".