122121762050 has 54 divisors (see below), whose sum is σ = 230641378353. Its totient is φ = 48108378240.

The previous prime is 122121762029. The next prime is 122121762109. The reversal of 122121762050 is 50267121221.

It is a happy number.

It can be written as a sum of positive squares in 14 ways, for example, as 42908222449 + 79213539601 = 207143^2 + 281449^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247105.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 180386312 + ... + 180386988.

Almost surely, 2^122121762050 is an apocalyptic number.

122121762050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121762050 is a deficient number, since it is larger than the sum of its proper divisors (108519616303).

122121762050 is an frugal number, since it uses more digits than its factorization.

122121762050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 122121762050 its reverse (50267121221), we get a palindrome (172388883271).

The spelling of 122121762050 in words is "one hundred twenty-two billion, one hundred twenty-one million, seven hundred sixty-two thousand, fifty".