1202111121011 has 16 divisors (see below), whose sum is σ = 1339979760000. Its totient is φ = 1071718996608.

The previous prime is 1202111120993. The next prime is 1202111121023. The reversal of 1202111121011 is 1101211112021.

It is a cyclic number.

It is not a de Polignac number, because 1202111121011 - 2³⁸ = 927233214067 is a prime.

It is a super-2 number, since 2×1202111121011² (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 (1202111121031) 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, 2436740 + ... + 2888238.

It is an arithmetic number, because the mean of its divisors is an integer number (83748735000).

Almost surely, 2^{1202111121011} is an apocalyptic number.

1202111121011 is a deficient number, since it is larger than the sum of its proper divisors (137868638989).

1202111121011 is a wasteful number, since it uses less digits than its factorization.

1202111121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459778.

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

Adding to 1202111121011 its reverse (1101211112021), we get a palindrome (2303322233032).

The spelling of 1202111121011 in words is "one trillion, two hundred two billion, one hundred eleven million, one hundred twenty-one thousand, eleven".