1201221102122 has 32 divisors (see below), whose sum is σ = 1835986046400. Its totient is φ = 589298802048.

The previous prime is 1201221102121. The next prime is 1201221102131. The reversal of 1201221102122 is 2212011221021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201221102122.

It is not an unprimeable number, because it can be changed into a prime (1201221102121) 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, 110309654 + ... + 110320542.

It is an arithmetic number, because the mean of its divisors is an integer number (57374563950).

Almost surely, 2^{1201221102122} is an apocalyptic number.

1201221102122 is a deficient number, since it is larger than the sum of its proper divisors (634764944278).

1201221102122 is a wasteful number, since it uses less digits than its factorization.

1201221102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14150.

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

Adding to 1201221102122 its reverse (2212011221021), we get a palindrome (3413232323143).

The spelling of 1201221102122 in words is "one trillion, two hundred one billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-two".