121152155050 has 12 divisors (see below), whose sum is σ = 225343008486. Its totient is φ = 48460862000.

The previous prime is 121152155021. The next prime is 121152155071. The reversal of 121152155050 is 50551251121.

It can be written as a sum of positive squares in 3 ways, for example, as 98540115921 + 22612039129 = 313911^2 + 150373^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1211521501 + ... + 1211521600.

Almost surely, 2^121152155050 is an apocalyptic number.

121152155050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121152155050 is a deficient number, since it is larger than the sum of its proper divisors (104190853436).

121152155050 is a wasteful number, since it uses less digits than its factorization.

121152155050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423043113 (or 2423043108 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 121152155050 in words is "one hundred twenty-one billion, one hundred fifty-two million, one hundred fifty-five thousand, fifty".