157522221120 has 224 divisors, whose sum is σ = 545912747136. Its totient is φ = 38165299200.

The previous prime is 157522221097. The next prime is 157522221251. The reversal of 157522221120 is 21122225751.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25731660 + ... + 25737780.

Almost surely, 2^157522221120 is an apocalyptic number.

157522221120 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 157522221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272956373568).

157522221120 is an abundant number, since it is smaller than the sum of its proper divisors (388390526016).

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

157522221120 is a wasteful number, since it uses less digits than its factorization.

157522221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589 (or 8579 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

Adding to 157522221120 its reverse (21122225751), we get a palindrome (178644446871).

The spelling of 157522221120 in words is "one hundred fifty-seven billion, five hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".