1012001219 has 8 divisors (see below), whose sum is σ = 1065349152. Its totient is φ = 959432320.

The previous prime is 1012001201. The next prime is 1012001257. The reversal of 1012001219 is 9121002101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012001219 - 2²⁰ = 1010952643 is a prime.

It is a super-2 number, since 2×1012001219² = 2048292934514971922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012001197 and 1012001206.

It is not an unprimeable number, because it can be changed into a prime (1012001519) 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, 192092 + ... + 197289.

It is an arithmetic number, because the mean of its divisors is an integer number (133168644).

Almost surely, 2^1012001219 is an apocalyptic number.

1012001219 is a deficient number, since it is larger than the sum of its proper divisors (53347933).

1012001219 is a wasteful number, since it uses less digits than its factorization.

1012001219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389517.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1012001219 is about 31811.9666006363. The cubic root of 1012001219 is about 1003.9845089354.

The spelling of 1012001219 in words is "one billion, twelve million, one thousand, two hundred nineteen".