2001022221219 has 16 divisors (see below), whose sum is σ = 3114052819968. Its totient is φ = 1119112731072.

The previous prime is 2001022221217. The next prime is 2001022221227. The reversal of 2001022221219 is 9121222201002.

It is not a de Polignac number, because 2001022221219 - 2¹ = 2001022221217 is a prime.

It is a super-2 number, since 2×2001022221219² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2001022221217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013688082 + ... + 1013690055.

It is an arithmetic number, because the mean of its divisors is an integer number (194628301248).

Almost surely, 2^{2001022221219} is an apocalyptic number.

2001022221219 is a deficient number, since it is larger than the sum of its proper divisors (1113030598749).

2001022221219 is a wasteful number, since it uses less digits than its factorization.

2001022221219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027378194.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 2001022221219 in words is "two trillion, one billion, twenty-two million, two hundred twenty-one thousand, two hundred nineteen".