1201223210122 has 64 divisors (see below), whose sum is σ = 1966593000960. Its totient is φ = 546999215616.

The previous prime is 1201223210063. The next prime is 1201223210137. The reversal of 1201223210122 is 2210123221021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201223210122.

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, 420447718 + ... + 420450574.

It is an arithmetic number, because the mean of its divisors is an integer number (30728015640).

Almost surely, 2^{1201223210122} is an apocalyptic number.

1201223210122 is a deficient number, since it is larger than the sum of its proper divisors (765369790838).

1201223210122 is a wasteful number, since it uses less digits than its factorization.

1201223210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695.

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

Adding to 1201223210122 its reverse (2210123221021), we get a palindrome (3411346431143).

The spelling of 1201223210122 in words is "one trillion, two hundred one billion, two hundred twenty-three million, two hundred ten thousand, one hundred twenty-two".