2101201220019 has 24 divisors (see below), whose sum is σ = 3079527539200. Its totient is φ = 1273421738160.

The previous prime is 2101201219981. The next prime is 2101201220033. The reversal of 2101201220019 is 9100221021012.

It is not a de Polignac number, because 2101201220019 - 2¹² = 2101201215923 is a prime.

It is a super-2 number, since 2×2101201220019² (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 = 2101201219977 and 2101201220004.

It is not an unprimeable number, because it can be changed into a prime (2101201020019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25836582 + ... + 25917780.

Almost surely, 2^{2101201220019} is an apocalyptic number.

2101201220019 is a deficient number, since it is larger than the sum of its proper divisors (978326319181).

2101201220019 is a wasteful number, since it uses less digits than its factorization.

2101201220019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152511 (or 152500 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 2101201220019 in words is "two trillion, one hundred one billion, two hundred one million, two hundred twenty thousand, nineteen".