121355211350 has 24 divisors (see below), whose sum is σ = 225739850088. Its totient is φ = 48537964800.

The previous prime is 121355211319. The next prime is 121355211371. The reversal of 121355211350 is 53112553121.

121355211350 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 530630 + ... + 724070.

It is an arithmetic number, because the mean of its divisors is an integer number (9405827087).

Almost surely, 2^121355211350 is an apocalyptic number.

121355211350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121355211350 is a deficient number, since it is larger than the sum of its proper divisors (104384638738).

121355211350 is a wasteful number, since it uses less digits than its factorization.

121355211350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206000 (or 205995 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 121355211350 its reverse (53112553121), we get a palindrome (174467764471).

The spelling of 121355211350 in words is "one hundred twenty-one billion, three hundred fifty-five million, two hundred eleven thousand, three hundred fifty".