1020022111012 has 12 divisors (see below), whose sum is σ = 1785078571276. Its totient is φ = 509999662080.

The previous prime is 1020022110941. The next prime is 1020022111019. The reversal of 1020022111012 is 2101112200201.

It can be written as a sum of positive squares in 2 ways, for example, as 216872764416 + 803149346596 = 465696^2 + 896186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020022110983 and 1020022111001.

It is not an unprimeable number, because it can be changed into a prime (1020022111019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645313 + ... + 3006280.

Almost surely, 2^{1020022111012} is an apocalyptic number.

It is an amenable number.

1020022111012 is a deficient number, since it is larger than the sum of its proper divisors (765056460264).

1020022111012 is a wasteful number, since it uses less digits than its factorization.

1020022111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696718 (or 5696716 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020022111012 its reverse (2101112200201), we get a palindrome (3121134311213).

The spelling of 1020022111012 in words is "one trillion, twenty billion, twenty-two million, one hundred eleven thousand, twelve".