1021221111022 has 16 divisors (see below), whose sum is σ = 1754319605760. Its totient is φ = 436752479448.

The previous prime is 1021221111019. The next prime is 1021221111067. The reversal of 1021221111022 is 2201111221201.

It is a junction number, because it is equal to n+sod(n) for n = 1021221110987 and 1021221111005.

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, 76135638 + ... + 76149049.

It is an arithmetic number, because the mean of its divisors is an integer number (109644975360).

Almost surely, 2^{1021221111022} is an apocalyptic number.

1021221111022 is a deficient number, since it is larger than the sum of its proper divisors (733098494738).

1021221111022 is a wasteful number, since it uses less digits than its factorization.

1021221111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152285175.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021221111022 its reverse (2201111221201), we get a palindrome (3222332332223).

The spelling of 1021221111022 in words is "one trillion, twenty-one billion, two hundred twenty-one million, one hundred eleven thousand, twenty-two".