1222121120012 has 24 divisors (see below), whose sum is σ = 2303306304096. Its totient is φ = 564036789888.

The previous prime is 1222121119993. The next prime is 1222121120069. The reversal of 1222121120012 is 2100211212221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213433 + ... + 1979055.

It is an arithmetic number, because the mean of its divisors is an integer number (95971096004).

Almost surely, 2^{1222121120012} is an apocalyptic number.

It is an amenable number.

1222121120012 is a deficient number, since it is larger than the sum of its proper divisors (1081185184084).

1222121120012 is a wasteful number, since it uses less digits than its factorization.

1222121120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796337 (or 796335 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222121120012 its reverse (2100211212221), we get a palindrome (3322332332233).

The spelling of 1222121120012 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, twelve".