1021102011219 has 4 divisors (see below), whose sum is σ = 1361469348296. Its totient is φ = 680734674144.

The previous prime is 1021102011217. The next prime is 1021102011227. The reversal of 1021102011219 is 9121102011201.

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

It is not a de Polignac number, because 1021102011219 - 2¹ = 1021102011217 is a prime.

It is a super-2 number, since 2×1021102011219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021102011195 and 1021102011204.

It is not an unprimeable number, because it can be changed into a prime (1021102011211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170183668534 + ... + 170183668539.

It is an arithmetic number, because the mean of its divisors is an integer number (340367337074).

Almost surely, 2^{1021102011219} is an apocalyptic number.

1021102011219 is a deficient number, since it is larger than the sum of its proper divisors (340367337077).

1021102011219 is an equidigital number, since it uses as much as digits as its factorization.

1021102011219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340367337076.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1021102011219 in words is "one trillion, twenty-one billion, one hundred two million, eleven thousand, two hundred nineteen".