1202011102121 has 16 divisors (see below), whose sum is σ = 1237315467600. Its totient is φ = 1167183763200.

The previous prime is 1202011102109. The next prime is 1202011102133. The reversal of 1202011102121 is 1212011102021.

It is an interprime number because it is at equal distance from previous prime (1202011102109) and next prime (1202011102133).

It can be written as a sum of positive squares in 8 ways, for example, as 124693734400 + 1077317367721 = 353120^2 + 1037939^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202011102121 - 2⁶ = 1202011102057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202011102096 and 1202011102105.

It is not an unprimeable number, because it can be changed into a prime (1202011102151) 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, 13600751 + ... + 13688843.

It is an arithmetic number, because the mean of its divisors is an integer number (77332216725).

Almost surely, 2^{1202011102121} is an apocalyptic number.

It is an amenable number.

1202011102121 is a deficient number, since it is larger than the sum of its proper divisors (35304365479).

1202011102121 is a wasteful number, since it uses less digits than its factorization.

1202011102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90796.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1202011102121 its reverse (1212011102021), we get a palindrome (2414022204142).

The spelling of 1202011102121 in words is "one trillion, two hundred two billion, eleven million, one hundred two thousand, one hundred twenty-one".