1212001038 has 12 divisors (see below), whose sum is σ = 2626002288. Its totient is φ = 404000340.

The previous prime is 1212001033. The next prime is 1212001039. The reversal of 1212001038 is 8301002121.

It is a super-2 number, since 2×1212001038² = 2937893032226154888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67333391 = 1212001038 / (1 + 2 + 1 + 2 + 0 + 0 + 1 + 0 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 1212001038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212001033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33666678 + ... + 33666713.

It is an arithmetic number, because the mean of its divisors is an integer number (218833524).

Almost surely, 2^1212001038 is an apocalyptic number.

1212001038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1212001038 is an abundant number, since it is smaller than the sum of its proper divisors (1414001250).

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

1212001038 is a wasteful number, since it uses less digits than its factorization.

1212001038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67333399 (or 67333396 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1212001038 is about 34813.8052789407. The cubic root of 1212001038 is about 1066.1893266319.

Adding to 1212001038 its reverse (8301002121), we get a palindrome (9513003159).

The spelling of 1212001038 in words is "one billion, two hundred twelve million, one thousand, thirty-eight".