101220310 has 16 divisors (see below), whose sum is σ = 182492352. Its totient is φ = 40422400.

The previous prime is 101220307. The next prime is 101220313. The reversal of 101220310 is 13022101.

It is an interprime number because it is at equal distance from previous prime (101220307) and next prime (101220313).

It is a super-2 number, since 2×101220310² = 20491102312992200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220313) 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, 1486 + ... + 14305.

It is an arithmetic number, because the mean of its divisors is an integer number (11405772).

Almost surely, 2^101220310 is an apocalyptic number.

101220310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220310 is a deficient number, since it is larger than the sum of its proper divisors (81272042).

101220310 is a wasteful number, since it uses less digits than its factorization.

101220310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16439.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 101220310 is about 10060.8304826192. The cubic root of 101220310 is about 466.0393140403.

Adding to 101220310 its reverse (13022101), we get a palindrome (114242411).

The spelling of 101220310 in words is "one hundred one million, two hundred twenty thousand, three hundred ten".