1201222212103 has 16 divisors (see below), whose sum is σ = 1229089910400. Its totient is φ = 1173697724160.

The previous prime is 1201222212007. The next prime is 1201222212137. The reversal of 1201222212103 is 3012122221021.

It is a cyclic number.

It is not a de Polignac number, because 1201222212103 - 2²¹ = 1201220114951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222252103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6984675 + ... + 7154587.

It is an arithmetic number, because the mean of its divisors is an integer number (76818119400).

Almost surely, 2^{1201222212103} is an apocalyptic number.

1201222212103 is a deficient number, since it is larger than the sum of its proper divisors (27867698297).

1201222212103 is a wasteful number, since it uses less digits than its factorization.

1201222212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170922.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1201222212103 its reverse (3012122221021), we get a palindrome (4213344433124).

The spelling of 1201222212103 in words is "one trillion, two hundred one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred three".