122115315150 has 384 divisors, whose sum is σ = 369458496000. Its totient is φ = 29550044160.

The previous prime is 122115315137. The next prime is 122115315163. The reversal of 122115315150 is 51513511221.

It is a happy number.

122115315150 is a `hidden beast` number, since 1 + 2 + 2 + 115 + 31 + 515 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (122115315137) and next prime (122115315163).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 58455306 + ... + 58457394.

It is an arithmetic number, because the mean of its divisors is an integer number (962131500).

Almost surely, 2^122115315150 is an apocalyptic number.

122115315150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122115315150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184729248000).

122115315150 is an abundant number, since it is smaller than the sum of its proper divisors (247343180850).

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

122115315150 is a wasteful number, since it uses less digits than its factorization.

122115315150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

Adding to 122115315150 its reverse (51513511221), we get a palindrome (173628826371).

The spelling of 122115315150 in words is "one hundred twenty-two billion, one hundred fifteen million, three hundred fifteen thousand, one hundred fifty".