1212011010 has 96 divisors (see below), whose sum is σ = 3607269120. Its totient is φ = 276580224.

The previous prime is 1212010997. The next prime is 1212011063. The reversal of 1212011010 is 101102121.

It is a happy number.

It is a super-2 number, since 2×1212011010² = 2937941376722440200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1212010983 and 1212011001.

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, 527424 + ... + 529716.

It is an arithmetic number, because the mean of its divisors is an integer number (37575720).

Almost surely, 2^1212011010 is an apocalyptic number.

1212011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212011010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1803634560).

1212011010 is an abundant number, since it is smaller than the sum of its proper divisors (2395258110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212011010 is a wasteful number, since it uses less digits than its factorization.

1212011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 3149 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1212011010 is about 34813.9484976927. The cubic root of 1212011010 is about 1066.1922507248.

Adding to 1212011010 its reverse (101102121), we get a palindrome (1313113131).

The spelling of 1212011010 in words is "one billion, two hundred twelve million, eleven thousand, ten".