1021011012122 has 16 divisors (see below), whose sum is σ = 1547189587944. Its totient is φ = 505284480000.

The previous prime is 1021011012121. The next prime is 1021011012127. The reversal of 1021011012122 is 2212101101201.

It can be written as a sum of positive squares in 4 ways, for example, as 1017780340201 + 3230671921 = 1008851^2 + 56839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021011012097 and 1021011012106.

It is not an unprimeable number, because it can be changed into a prime (1021011012121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216779 + ... + 1445342.

Almost surely, 2^{1021011012122} is an apocalyptic number.

1021011012122 is a deficient number, since it is larger than the sum of its proper divisors (526178575822).

1021011012122 is a wasteful number, since it uses less digits than its factorization.

1021011012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665265.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021011012122 its reverse (2212101101201), we get a palindrome (3233112113323).

The spelling of 1021011012122 in words is "one trillion, twenty-one billion, eleven million, twelve thousand, one hundred twenty-two".