121002150 has 48 divisors (see below), whose sum is σ = 300762000. Its totient is φ = 32194560.

The previous prime is 121002121. The next prime is 121002157. The reversal of 121002150 is 51200121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114826 + ... + 115874.

It is an arithmetic number, because the mean of its divisors is an integer number (6265875).

Almost surely, 2^121002150 is an apocalyptic number.

121002150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121002150 is an abundant number, since it is smaller than the sum of its proper divisors (179759850).

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

121002150 is a wasteful number, since it uses less digits than its factorization.

121002150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1828 counting only the distinct ones).

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

The square root of 121002150 is about 11000.0977268386. The cubic root of 121002150 is about 494.6116738083.

Adding to 121002150 its reverse (51200121), we get a palindrome (172202271).

The spelling of 121002150 in words is "one hundred twenty-one million, two thousand, one hundred fifty".