10151220 has 48 divisors (see below), whose sum is σ = 28562688. Its totient is φ = 2693760.

The previous prime is 10151203. The next prime is 10151233. The reversal of 10151220 is 2215101.

10151220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10151196 and 10151205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21790 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (595056).

Almost surely, 2^10151220 is an apocalyptic number.

10151220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10151220 is an abundant number, since it is smaller than the sum of its proper divisors (18411468).

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

10151220 is a wasteful number, since it uses less digits than its factorization.

10151220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 10151220 is about 3186.0979269319. The cubic root of 10151220 is about 216.5240191889.

Adding to 10151220 its reverse (2215101), we get a palindrome (12366321).

The spelling of 10151220 in words is "ten million, one hundred fifty-one thousand, two hundred twenty".