1022022121211 has 16 divisors (see below), whose sum is σ = 1257898672128. Its totient is φ = 808616628000.

The previous prime is 1022022121079. The next prime is 1022022121271. The reversal of 1022022121211 is 1121212202201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022022121211 is a prime.

It is a super-2 number, since 2×1022022121211² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022022121211.

It is not an unprimeable number, because it can be changed into a prime (1022022121271) 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, 6653606 + ... + 6805476.

It is an arithmetic number, because the mean of its divisors is an integer number (78618667008).

Almost surely, 2^{1022022121211} is an apocalyptic number.

1022022121211 is a deficient number, since it is larger than the sum of its proper divisors (235876550917).

1022022121211 is a wasteful number, since it uses less digits than its factorization.

1022022121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225842.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1022022121211 its reverse (1121212202201), we get a palindrome (2143234323412).

The spelling of 1022022121211 in words is "one trillion, twenty-two billion, twenty-two million, one hundred twenty-one thousand, two hundred eleven".