1011021221122 has 12 divisors (see below), whose sum is σ = 1666931683158. Its totient is φ = 459555100400.

The previous prime is 1011021221081. The next prime is 1011021221179. The reversal of 1011021221122 is 2211221201101.

1011021221122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 662757181801 + 348264039321 = 814099^2 + 590139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1011021221096 and 1011021221105.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2088886579 + ... + 2088887062.

Almost surely, 2^{1011021221122} is an apocalyptic number.

1011021221122 is a deficient number, since it is larger than the sum of its proper divisors (655910462036).

1011021221122 is a wasteful number, since it uses less digits than its factorization.

1011021221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177773665 (or 4177773654 counting only the distinct ones).

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

Adding to 1011021221122 its reverse (2211221201101), we get a palindrome (3222242422223).

The spelling of 1011021221122 in words is "one trillion, eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".