105017157220 has 24 divisors (see below), whose sum is σ = 220542364224. Its totient is φ = 42005656416.

The previous prime is 105017157187. The next prime is 105017157283. The reversal of 105017157220 is 22751710501.

It is a super-2 number, since 2×105017157220² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042809 + ... + 1139071.

It is an arithmetic number, because the mean of its divisors is an integer number (9189265176).

Almost surely, 2^105017157220 is an apocalyptic number.

105017157220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105017157220 is an abundant number, since it is smaller than the sum of its proper divisors (115525207004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105017157220 is a wasteful number, since it uses less digits than its factorization.

105017157220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150819 (or 150817 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 31.

Adding to 105017157220 its reverse (22751710501), we get a palindrome (127768867721).

The spelling of 105017157220 in words is "one hundred five billion, seventeen million, one hundred fifty-seven thousand, two hundred twenty".