201000122019 has 6 divisors (see below), whose sum is σ = 290333509596. Its totient is φ = 134000081340.

The previous prime is 201000122009. The next prime is 201000122021. The reversal of 201000122019 is 910221000102.

It is not a de Polignac number, because 201000122019 - 2⁴ = 201000122003 is a prime.

It is a super-2 number, since 2×201000122019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201000121992 and 201000122010.

It is not an unprimeable number, because it can be changed into a prime (201000122009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11166673437 + ... + 11166673454.

It is an arithmetic number, because the mean of its divisors is an integer number (48388918266).

Almost surely, 2^201000122019 is an apocalyptic number.

201000122019 is a deficient number, since it is larger than the sum of its proper divisors (89333387577).

201000122019 is a wasteful number, since it uses less digits than its factorization.

201000122019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22333346897 (or 22333346894 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 201000122019 in words is "two hundred one billion, one hundred twenty-two thousand, nineteen".