1202111112011 has 16 divisors (see below), whose sum is σ = 1225106467200. Its totient is φ = 1179295584768.

The previous prime is 1202111111941. The next prime is 1202111112053. The reversal of 1202111112011 is 1102111112021.

It is a cyclic number.

It is not a de Polignac number, because 1202111112011 - 2²² = 1202106917707 is a prime.

It is a super-2 number, since 2×1202111112011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202111115011) 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, 63396350 + ... + 63415308.

It is an arithmetic number, because the mean of its divisors is an integer number (76569154200).

Almost surely, 2^{1202111112011} is an apocalyptic number.

1202111112011 is a deficient number, since it is larger than the sum of its proper divisors (22995355189).

1202111112011 is a wasteful number, since it uses less digits than its factorization.

1202111112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23638.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1202111112011 its reverse (1102111112021), we get a palindrome (2304222224032).

The spelling of 1202111112011 in words is "one trillion, two hundred two billion, one hundred eleven million, one hundred twelve thousand, eleven".