121602150550 has 24 divisors (see below), whose sum is σ = 226199531232. Its totient is φ = 48636660000.

The previous prime is 121602150503. The next prime is 121602150581. The reversal of 121602150550 is 55051206121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516195 + ... + 713905.

It is an arithmetic number, because the mean of its divisors is an integer number (9424980468).

Almost surely, 2^121602150550 is an apocalyptic number.

121602150550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121602150550 is a deficient number, since it is larger than the sum of its proper divisors (104597380682).

121602150550 is a wasteful number, since it uses less digits than its factorization.

121602150550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210024 (or 210019 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 121602150550 its reverse (55051206121), we get a palindrome (176653356671).

The spelling of 121602150550 in words is "one hundred twenty-one billion, six hundred two million, one hundred fifty thousand, five hundred fifty".