1212000111010 has 96 divisors (see below), whose sum is σ = 2390600498832. Its totient is φ = 442183173120.

The previous prime is 1212000110939. The next prime is 1212000111053. The reversal of 1212000111010 is 101110002121.

It can be written as a sum of positive squares in 24 ways, for example, as 579652299801 + 632347811209 = 761349^2 + 795203^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48012112 + ... + 48037348.

Almost surely, 2^{1212000111010} is an apocalyptic number.

1212000111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212000111010 is a deficient number, since it is larger than the sum of its proper divisors (1178600387822).

1212000111010 is a wasteful number, since it uses less digits than its factorization.

1212000111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25608 (or 25595 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1212000111010 its reverse (101110002121), we get a palindrome (1313110113131).

The spelling of 1212000111010 in words is "one trillion, two hundred twelve billion, one hundred eleven thousand, ten".