151100220 has 24 divisors (see below), whose sum is σ = 423080784. Its totient is φ = 40293376.

The previous prime is 151100203. The next prime is 151100221. The reversal of 151100220 is 22001151.

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 = 151100196 and 151100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151100221) 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, 1259109 + ... + 1259228.

It is an arithmetic number, because the mean of its divisors is an integer number (17628366).

Almost surely, 2^151100220 is an apocalyptic number.

151100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151100220 is an abundant number, since it is smaller than the sum of its proper divisors (271980564).

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

151100220 is a wasteful number, since it uses less digits than its factorization.

151100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518349 (or 2518347 counting only the distinct ones).

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

The square root of 151100220 is about 12292.2829450025. The cubic root of 151100220 is about 532.6251860231.

Adding to 151100220 its reverse (22001151), we get a palindrome (173101371).

The spelling of 151100220 in words is "one hundred fifty-one million, one hundred thousand, two hundred twenty".