121697353050 has 576 divisors, whose sum is σ = 402038017920. Its totient is φ = 24101038080.

The previous prime is 121697353009. The next prime is 121697353061. The reversal of 121697353050 is 50353796121.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 121697352993 and 121697353011.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 102524557 + ... + 102525743.

It is an arithmetic number, because the mean of its divisors is an integer number (697982670).

Almost surely, 2^121697353050 is an apocalyptic number.

121697353050 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 121697353050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201019008960).

121697353050 is an abundant number, since it is smaller than the sum of its proper divisors (280340664870).

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

121697353050 is a wasteful number, since it uses less digits than its factorization.

121697353050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 121697353050 in words is "one hundred twenty-one billion, six hundred ninety-seven million, three hundred fifty-three thousand, fifty".