122210420115 has 64 divisors (see below), whose sum is σ = 224281645056. Its totient is φ = 55665211392.

The previous prime is 122210420077. The next prime is 122210420117. The reversal of 122210420115 is 511024012221.

It is not a de Polignac number, because 122210420115 - 2⁹ = 122210419603 is a prime.

It is a super-2 number, since 2×122210420115² (a number of 23 digits) contains 22 as substring.

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 = 122210420091 and 122210420100.

It is not an unprimeable number, because it can be changed into a prime (122210420117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50146677 + ... + 50149113.

It is an arithmetic number, because the mean of its divisors is an integer number (3504400704).

Almost surely, 2^122210420115 is an apocalyptic number.

122210420115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122210420115 is a deficient number, since it is larger than the sum of its proper divisors (102071224941).

122210420115 is a wasteful number, since it uses less digits than its factorization.

122210420115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 122210420115 its reverse (511024012221), we get a palindrome (633234432336).

The spelling of 122210420115 in words is "one hundred twenty-two billion, two hundred ten million, four hundred twenty thousand, one hundred fifteen".