1101020021019 has 32 divisors (see below), whose sum is σ = 1637430643200. Its totient is φ = 731187531360.

The previous prime is 1101020020999. The next prime is 1101020021029. The reversal of 1101020021019 is 9101200201011.

It is a happy number.

It is not a de Polignac number, because 1101020021019 - 2⁵ = 1101020020987 is a prime.

It is a super-2 number, since 2×1101020021019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1101020020992 and 1101020021010.

It is not an unprimeable number, because it can be changed into a prime (1101020021029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8587354 + ... + 8714624.

It is an arithmetic number, because the mean of its divisors is an integer number (51169707600).

Almost surely, 2^{1101020021019} is an apocalyptic number.

1101020021019 is a deficient number, since it is larger than the sum of its proper divisors (536410622181).

1101020021019 is a wasteful number, since it uses less digits than its factorization.

1101020021019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128512 (or 128506 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 1101020021019 in words is "one trillion, one hundred one billion, twenty million, twenty-one thousand, nineteen".