1212621723050 has 24 divisors (see below), whose sum is σ = 2374185691200. Its totient is φ = 459519810480.

The previous prime is 1212621722999. The next prime is 1212621723059. The reversal of 1212621723050 is 503271262121.

It is a junction number, because it is equal to n+sod(n) for n = 1212621722998 and 1212621723016.

It is not an unprimeable number, because it can be changed into a prime (1212621723059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638221010 + ... + 638222909.

It is an arithmetic number, because the mean of its divisors is an integer number (98924403800).

Almost surely, 2^{1212621723050} is an apocalyptic number.

1212621723050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212621723050 is a deficient number, since it is larger than the sum of its proper divisors (1161563968150).

1212621723050 is a wasteful number, since it uses less digits than its factorization.

1212621723050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276443950 (or 1276443945 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 1212621723050 its reverse (503271262121), we get a palindrome (1715892985171).

The spelling of 1212621723050 in words is "one trillion, two hundred twelve billion, six hundred twenty-one million, seven hundred twenty-three thousand, fifty".