20012201019 has 6 divisors (see below), whose sum is σ = 28906512596. Its totient is φ = 13341467340.

The previous prime is 20012200979. The next prime is 20012201023. The reversal of 20012201019 is 91010221002.

It is not a de Polignac number, because 20012201019 - 2¹¹ = 20012198971 is a prime.

It is a super-2 number, since 2×20012201019² (a number of 21 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 = 20012200992 and 20012201010.

It is not an unprimeable number, because it can be changed into a prime (20012201029) 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, 1111788937 + ... + 1111788954.

Almost surely, 2^20012201019 is an apocalyptic number.

20012201019 is a deficient number, since it is larger than the sum of its proper divisors (8894311577).

20012201019 is a wasteful number, since it uses less digits than its factorization.

20012201019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223577897 (or 2223577894 counting only the distinct ones).

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

The spelling of 20012201019 in words is "twenty billion, twelve million, two hundred one thousand, nineteen".