1121210012 has 24 divisors (see below), whose sum is σ = 2147695872. Its totient is φ = 508996800.

The previous prime is 1121210011. The next prime is 1121210039. The reversal of 1121210012 is 2100121211.

It is a super-2 number, since 2×1121210012² = 2514223782018080288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121209975 and 1121210002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121210011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173564 + ... + 179907.

It is an arithmetic number, because the mean of its divisors is an integer number (89487328).

Almost surely, 2^1121210012 is an apocalyptic number.

It is an amenable number.

1121210012 is a deficient number, since it is larger than the sum of its proper divisors (1026485860).

1121210012 is a wasteful number, since it uses less digits than its factorization.

1121210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353549 (or 353547 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1121210012 is about 33484.4741932735. The cubic root of 1121210012 is about 1038.8726726849.

Adding to 1121210012 its reverse (2100121211), we get a palindrome (3221331223).

The spelling of 1121210012 in words is "one billion, one hundred twenty-one million, two hundred ten thousand, twelve".