1020212121219 has 32 divisors (see below), whose sum is σ = 1464485806080. Its totient is φ = 629710579872.

The previous prime is 1020212121167. The next prime is 1020212121221. The reversal of 1020212121219 is 9121212120201.

It is not a de Polignac number, because 1020212121219 - 2¹⁶ = 1020212055683 is a prime.

It is a super-2 number, since 2×1020212121219² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020212121239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1550974 + ... + 2108540.

It is an arithmetic number, because the mean of its divisors is an integer number (45765181440).

Almost surely, 2^{1020212121219} is an apocalyptic number.

1020212121219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1020212121219 is a deficient number, since it is larger than the sum of its proper divisors (444273684861).

1020212121219 is a wasteful number, since it uses less digits than its factorization.

1020212121219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558319.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 1020212121219 in words is "one trillion, twenty billion, two hundred twelve million, one hundred twenty-one thousand, two hundred nineteen".