1212722102328 has 64 divisors (see below), whose sum is σ = 3340170760320. Its totient is φ = 363853008000.

The previous prime is 1212722102309. The next prime is 1212722102363. The reversal of 1212722102328 is 8232012272121.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22714150 + ... + 22767477.

It is an arithmetic number, because the mean of its divisors is an integer number (52190168130).

Almost surely, 2^{1212722102328} is an apocalyptic number.

It is an amenable number.

1212722102328 is an abundant number, since it is smaller than the sum of its proper divisors (2127448657992).

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

1212722102328 is a wasteful number, since it uses less digits than its factorization.

1212722102328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45481748 (or 45481744 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

Adding to 1212722102328 its reverse (8232012272121), we get a palindrome (9444734374449).

The spelling of 1212722102328 in words is "one trillion, two hundred twelve billion, seven hundred twenty-two million, one hundred two thousand, three hundred twenty-eight".