1201221033222 has 64 divisors (see below), whose sum is σ = 2756141337600. Its totient is φ = 341896235904.

The previous prime is 1201221033203. The next prime is 1201221033251. The reversal of 1201221033222 is 2223301221021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15542908 + ... + 15620000.

It is an arithmetic number, because the mean of its divisors is an integer number (43064708400).

Almost surely, 2^{1201221033222} is an apocalyptic number.

1201221033222 is an abundant number, since it is smaller than the sum of its proper divisors (1554920304378).

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

1201221033222 is a wasteful number, since it uses less digits than its factorization.

1201221033222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78517.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1201221033222 its reverse (2223301221021), we get a palindrome (3424522254243).

The spelling of 1201221033222 in words is "one trillion, two hundred one billion, two hundred twenty-one million, thirty-three thousand, two hundred twenty-two".