1202120111012 has 6 divisors (see below), whose sum is σ = 2103710194278. Its totient is φ = 601060055504.

The previous prime is 1202120111011. The next prime is 1202120111029. The reversal of 1202120111012 is 2101110212021.

It can be written as a sum of positive squares in only one way, i.e., 1031232126016 + 170887984996 = 1015496^2 + 413386^2 .

It is a super-2 number, since 2×1202120111012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1202120111011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150265013873 + ... + 150265013880.

It is an arithmetic number, because the mean of its divisors is an integer number (350618365713).

Almost surely, 2^{1202120111012} is an apocalyptic number.

It is an amenable number.

1202120111012 is a deficient number, since it is larger than the sum of its proper divisors (901590083266).

1202120111012 is a wasteful number, since it uses less digits than its factorization.

1202120111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300530027757 (or 300530027755 counting only the distinct ones).

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

Adding to 1202120111012 its reverse (2101110212021), we get a palindrome (3303230323033).

The spelling of 1202120111012 in words is "one trillion, two hundred two billion, one hundred twenty million, one hundred eleven thousand, twelve".