1202012121111 has 8 divisors (see below), whose sum is σ = 1614381243504. Its totient is φ = 795492206400.

The previous prime is 1202012121109. The next prime is 1202012121113. The reversal of 1202012121111 is 1111212102021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1202012121109) and next prime (1202012121113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202012121111 - 2¹ = 1202012121109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202012121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462301440 + ... + 1462302261.

It is an arithmetic number, because the mean of its divisors is an integer number (201797655438).

Almost surely, 2^{1202012121111} is an apocalyptic number.

1202012121111 is a deficient number, since it is larger than the sum of its proper divisors (412369122393).

1202012121111 is a wasteful number, since it uses less digits than its factorization.

1202012121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924603841.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1202012121111 its reverse (1111212102021), we get a palindrome (2313224223132).

The spelling of 1202012121111 in words is "one trillion, two hundred two billion, twelve million, one hundred twenty-one thousand, one hundred eleven".