101220168 has 32 divisors (see below), whose sum is σ = 289200960. Its totient is φ = 28920000.

The previous prime is 101220157. The next prime is 101220169. The reversal of 101220168 is 861022101.

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

It is not an unprimeable number, because it can be changed into a prime (101220169) 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, 301083 + ... + 301418.

It is an arithmetic number, because the mean of its divisors is an integer number (9037530).

Almost surely, 2^101220168 is an apocalyptic number.

It is an amenable number.

101220168 is an abundant number, since it is smaller than the sum of its proper divisors (187980792).

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

101220168 is a wasteful number, since it uses less digits than its factorization.

101220168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602517 (or 602513 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 101220168 is about 10060.8234255452. The cubic root of 101220168 is about 466.0390961077.

Adding to 101220168 its reverse (861022101), we get a palindrome (962242269).

The spelling of 101220168 in words is "one hundred one million, two hundred twenty thousand, one hundred sixty-eight".