1611221020022 has 16 divisors (see below), whose sum is σ = 2500304457600. Its totient is φ = 777789176640.

The previous prime is 1611221019953. The next prime is 1611221020033. The reversal of 1611221020022 is 2200201221161.

It is a junction number, because it is equal to n+sod(n) for n = 1611221019976 and 1611221020003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362354 + ... + 1831322.

It is an arithmetic number, because the mean of its divisors is an integer number (156269028600).

Almost surely, 2^{1611221020022} is an apocalyptic number.

1611221020022 is a deficient number, since it is larger than the sum of its proper divisors (889083437578).

1611221020022 is a wasteful number, since it uses less digits than its factorization.

1611221020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487911.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1611221020022 its reverse (2200201221161), we get a palindrome (3811422241183).

The spelling of 1611221020022 in words is "one trillion, six hundred eleven billion, two hundred twenty-one million, twenty thousand, twenty-two".