1011212221322 has 16 divisors (see below), whose sum is σ = 1557234800352. Its totient is φ = 492279599760.

The previous prime is 1011212221309. The next prime is 1011212221361. The reversal of 1011212221322 is 2231222121101.

It is a super-2 number, since 2×1011212221322² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011212221294 and 1011212221303.

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, 36397328 + ... + 36425099.

It is an arithmetic number, because the mean of its divisors is an integer number (97327175022).

Almost surely, 2^{1011212221322} is an apocalyptic number.

1011212221322 is a deficient number, since it is larger than the sum of its proper divisors (546022579030).

1011212221322 is a wasteful number, since it uses less digits than its factorization.

1011212221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72822613.

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

Adding to 1011212221322 its reverse (2231222121101), we get a palindrome (3242434342423).

The spelling of 1011212221322 in words is "one trillion, eleven billion, two hundred twelve million, two hundred twenty-one thousand, three hundred twenty-two".