2021211020019 has 32 divisors (see below), whose sum is σ = 2779266297600. Its totient is φ = 1306129917312.

The previous prime is 2021211020009. The next prime is 2021211020021. The reversal of 2021211020019 is 9100201121202.

It is not a de Polignac number, because 2021211020019 - 2¹⁵ = 2021210987251 is a prime.

It is a super-2 number, since 2×2021211020019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021211019977 and 2021211020004.

It is not an unprimeable number, because it can be changed into a prime (2021211020009) 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, 2889177 + ... + 3519909.

It is an arithmetic number, because the mean of its divisors is an integer number (86852071800).

Almost surely, 2^{2021211020019} is an apocalyptic number.

2021211020019 is a deficient number, since it is larger than the sum of its proper divisors (758055277581).

2021211020019 is a wasteful number, since it uses less digits than its factorization.

2021211020019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631059.

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

The spelling of 2021211020019 in words is "two trillion, twenty-one billion, two hundred eleven million, twenty thousand, nineteen".