221122121220219 has 32 divisors (see below), whose sum is σ = 298864785024000. Its totient is φ = 145400915522304.

The previous prime is 221122121220181. The next prime is 221122121220251. The reversal of 221122121220219 is 912022121221122.

It is not a de Polignac number, because 221122121220219 - 2²¹ = 221122119123067 is a prime.

It is a super-2 number, since 2×221122121220219² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221122121220919) 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, 4108598692 + ... + 4108652510.

It is an arithmetic number, because the mean of its divisors is an integer number (9339524532000).

Almost surely, 2^{221122121220219} is an apocalyptic number.

221122121220219 is a deficient number, since it is larger than the sum of its proper divisors (77742663803781).

221122121220219 is a wasteful number, since it uses less digits than its factorization.

221122121220219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71187.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 221122121220219 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, two hundred nineteen".