121223956050 has 90 divisors (see below), whose sum is σ = 336884583189. Its totient is φ = 32320479600.

The previous prime is 121223956037. The next prime is 121223956081. The reversal of 121223956050 is 50659322121.

It is a happy number.

121223956050 is a `hidden beast` number, since 1 + 2 + 12 + 2 + 39 + 5 + 605 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 118799476929 + 2424479121 = 344673^2 + 49239^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=246195.

It is a junction number, because it is equal to n+sod(n) for n = 121223955996 and 121223956014.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 22154815 + ... + 22160285.

Almost surely, 2^121223956050 is an apocalyptic number.

121223956050 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 121223956050

121223956050 is an abundant number, since it is smaller than the sum of its proper divisors (215660627139).

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

121223956050 is an frugal number, since it uses more digits than its factorization.

121223956050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10966 (or 5481 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 121223956050 in words is "one hundred twenty-one billion, two hundred twenty-three million, nine hundred fifty-six thousand, fifty".