1122212120078 has 16 divisors (see below), whose sum is σ = 1930638448224. Its totient is φ = 479236490880.

The previous prime is 1122212120077. The next prime is 1122212120129. The reversal of 1122212120078 is 8700212122211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122212120078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122212120077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142625975 + ... + 142633842.

It is an arithmetic number, because the mean of its divisors is an integer number (120664903014).

Almost surely, 2^{1122212120078} is an apocalyptic number.

1122212120078 is a deficient number, since it is larger than the sum of its proper divisors (808426328146).

1122212120078 is a wasteful number, since it uses less digits than its factorization.

1122212120078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285260107.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 1122212120078 its reverse (8700212122211), we get a palindrome (9822424242289).

The spelling of 1122212120078 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twenty thousand, seventy-eight".