1212020200019 has 8 divisors (see below), whose sum is σ = 1222037264448. Its totient is φ = 1202039628480.

The previous prime is 1212020199989. The next prime is 1212020200049. The reversal of 1212020200019 is 9100020202121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212020199989) and next prime (1212020200049).

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 1212020200019 - 2⁸ = 1212020199763 is a prime.

It is a super-2 number, since 2×1212020200019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212020200049) 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, 9056522 + ... + 9189375.

It is an arithmetic number, because the mean of its divisors is an integer number (152754658056).

Almost surely, 2^{1212020200019} is an apocalyptic number.

1212020200019 is a deficient number, since it is larger than the sum of its proper divisors (10017064429).

1212020200019 is a wasteful number, since it uses less digits than its factorization.

1212020200019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18246445.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1212020200019 in words is "one trillion, two hundred twelve billion, twenty million, two hundred thousand, nineteen".