1202121012112 has 20 divisors (see below), whose sum is σ = 2329130341296. Its totient is φ = 601055117600.

The previous prime is 1202121012091. The next prime is 1202121012119. The reversal of 1202121012112 is 2112101212021.

It is a super-2 number, since 2×1202121012112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1202121012119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991487 + ... + 2523937.

Almost surely, 2^{1202121012112} is an apocalyptic number.

It is an amenable number.

1202121012112 is a deficient number, since it is larger than the sum of its proper divisors (1127009329184).

1202121012112 is a wasteful number, since it uses less digits than its factorization.

1202121012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673566 (or 673560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1202121012112 its reverse (2112101212021), we get a palindrome (3314222224133).

The spelling of 1202121012112 in words is "one trillion, two hundred two billion, one hundred twenty-one million, twelve thousand, one hundred twelve".