1210552001 has 4 divisors (see below), whose sum is σ = 1210712532. Its totient is φ = 1210391472.

The previous prime is 1210551967. The next prime is 1210552003. The reversal of 1210552001 is 1002550121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 457104400 + 753447601 = 21380^2 + 27449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210552001 - 2¹⁴ = 1210535617 is a prime.

It is a super-2 number, since 2×1210552001² = 2930872294250208002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210552003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68366 + ... + 84231.

It is an arithmetic number, because the mean of its divisors is an integer number (302678133).

Almost surely, 2^1210552001 is an apocalyptic number.

It is an amenable number.

1210552001 is a deficient number, since it is larger than the sum of its proper divisors (160531).

1210552001 is an equidigital number, since it uses as much as digits as its factorization.

1210552001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160530.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1210552001 is about 34792.9878136385. The cubic root of 1210552001 is about 1065.7642544183.

It can be divided in two parts, 121055 and 2001, that multiplied together give a triangular number (242231055 = T₂₂₀₁₀).

The spelling of 1210552001 in words is "one billion, two hundred ten million, five hundred fifty-two thousand, one".