151401221120 has 88 divisors (see below), whose sum is σ = 363320032128. Its totient is φ = 60538060800.

The previous prime is 151401221071. The next prime is 151401221131. The reversal of 151401221120 is 21122104151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 151401221092 and 151401221101.

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, 24731660 + ... + 24737780.

Almost surely, 2^151401221120 is an apocalyptic number.

151401221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151401221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181660016064).

151401221120 is an abundant number, since it is smaller than the sum of its proper divisors (211918811008).

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

151401221120 is an equidigital number, since it uses as much as digits as its factorization.

151401221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10977 (or 10959 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 151401221120 its reverse (21122104151), we get a palindrome (172523325271).

The spelling of 151401221120 in words is "one hundred fifty-one billion, four hundred one million, two hundred twenty-one thousand, one hundred twenty".