1202120011001 has 24 divisors (see below), whose sum is σ = 1554531681024. Its totient is φ = 920446359840.

The previous prime is 1202120010961. The next prime is 1202120011033. The reversal of 1202120011001 is 1001100212021.

It is not a de Polignac number, because 1202120011001 - 2²² = 1202115816697 is a prime.

It is a super-2 number, since 2×1202120011001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1202120011801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30418295 + ... + 30457788.

It is an arithmetic number, because the mean of its divisors is an integer number (64772153376).

Almost surely, 2^{1202120011001} is an apocalyptic number.

It is an amenable number.

1202120011001 is a deficient number, since it is larger than the sum of its proper divisors (352411670023).

1202120011001 is a wasteful number, since it uses less digits than its factorization.

1202120011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60876141 (or 60876134 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1202120011001 its reverse (1001100212021), we get a palindrome (2203220223022).

The spelling of 1202120011001 in words is "one trillion, two hundred two billion, one hundred twenty million, eleven thousand, one".