1230421122550 has 48 divisors (see below), whose sum is σ = 2419374681360. Its totient is φ = 464263626240.

The previous prime is 1230421122529. The next prime is 1230421122599. The reversal of 1230421122550 is 552211240321.

It is a happy number.

It is a super-2 number, since 2×1230421122550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2558007 + ... + 3000706.

It is an arithmetic number, because the mean of its divisors is an integer number (50403639195).

Almost surely, 2^{1230421122550} is an apocalyptic number.

1230421122550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230421122550 is a deficient number, since it is larger than the sum of its proper divisors (1188953558810).

1230421122550 is a wasteful number, since it uses less digits than its factorization.

1230421122550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5558977 (or 5558972 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1230421122550 its reverse (552211240321), we get a palindrome (1782632362871).

The spelling of 1230421122550 in words is "one trillion, two hundred thirty billion, four hundred twenty-one million, one hundred twenty-two thousand, five hundred fifty".