1201222212122 has 16 divisors (see below), whose sum is σ = 1819466630592. Its totient is φ = 594734231520.

The previous prime is 1201222212007. The next prime is 1201222212137. The reversal of 1201222212122 is 2212122221021.

It is a junction number, because it is equal to n+sod(n) for n = 1201222212094 and 1201222212103.

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, 2546597 + ... + 2981207.

It is an arithmetic number, because the mean of its divisors is an integer number (113716664412).

Almost surely, 2^{1201222212122} is an apocalyptic number.

1201222212122 is a deficient number, since it is larger than the sum of its proper divisors (618244418470).

1201222212122 is a wasteful number, since it uses less digits than its factorization.

1201222212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448133.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1201222212122 its reverse (2212122221021), we get a palindrome (3413344433143).

The spelling of 1201222212122 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".