101242220 has 24 divisors (see below), whose sum is σ = 213179904. Its totient is φ = 40388096.

The previous prime is 101242201. The next prime is 101242319. The reversal of 101242220 is 22242101.

It is a super-2 number, since 2×101242220² = 20499974221056800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101242195 and 101242204.

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, 1052 + ... + 14268.

It is an arithmetic number, because the mean of its divisors is an integer number (8882496).

Almost surely, 2^101242220 is an apocalyptic number.

101242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101242220 is an abundant number, since it is smaller than the sum of its proper divisors (111937684).

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

101242220 is a wasteful number, since it uses less digits than its factorization.

101242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13609 (or 13607 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 101242220 is about 10061.9193000143. The cubic root of 101242220 is about 466.0729376767.

Adding to 101242220 its reverse (22242101), we get a palindrome (123484321).

The spelling of 101242220 in words is "one hundred one million, two hundred forty-two thousand, two hundred twenty".