101224031420 has 12 divisors (see below), whose sum is σ = 212570466024. Its totient is φ = 40489612560.

The previous prime is 101224031407. The next prime is 101224031437. The reversal of 101224031420 is 24130422101.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5061201571 = 101224031420 / (1 + 0 + 1 + 2 + 2 + 4 + 0 + 3 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 101224031392 and 101224031401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530600766 + ... + 2530600805.

It is an arithmetic number, because the mean of its divisors is an integer number (17714205502).

Almost surely, 2^101224031420 is an apocalyptic number.

101224031420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101224031420 is an abundant number, since it is smaller than the sum of its proper divisors (111346434604).

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

101224031420 is a wasteful number, since it uses less digits than its factorization.

101224031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061201580 (or 5061201578 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 101224031420 its reverse (24130422101), we get a palindrome (125354453521).

The spelling of 101224031420 in words is "one hundred one billion, two hundred twenty-four million, thirty-one thousand, four hundred twenty".