1202121112 has 16 divisors (see below), whose sum is σ = 2254361400. Its totient is φ = 600958080.

The previous prime is 1202121103. The next prime is 1202121113. The reversal of 1202121112 is 2111212021.

It is a super-2 number, since 2×1202121112² = 2890190335832233088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202121092 and 1202121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202121113) 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, 64464 + ... + 80992.

Almost surely, 2^1202121112 is an apocalyptic number.

It is an amenable number.

1202121112 is a deficient number, since it is larger than the sum of its proper divisors (1052240288).

1202121112 is a wasteful number, since it uses less digits than its factorization.

1202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25626 (or 25622 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1202121112 is about 34671.6182489367. The cubic root of 1202121112 is about 1063.2843167058.

Adding to 1202121112 its reverse (2111212021), we get a palindrome (3313333133).

Subtracting 1202121112 from its reverse (2111212021), we obtain a palindrome (909090909).

It can be divided in two parts, 12021 and 21112, that multiplied together give a palindrome (253787352).

The spelling of 1202121112 in words is "one billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".