1021012001122 has 4 divisors (see below), whose sum is σ = 1531518001686. Its totient is φ = 510506000560.

The previous prime is 1021012001081. The next prime is 1021012001123. The reversal of 1021012001122 is 2211002101201.

1021012001122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1008982079361 + 12029921761 = 1004481^2 + 109681^2 .

It is not an unprimeable number, because it can be changed into a prime (1021012001123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255253000279 + ... + 255253000282.

Almost surely, 2^{1021012001122} is an apocalyptic number.

1021012001122 is a deficient number, since it is larger than the sum of its proper divisors (510506000564).

1021012001122 is an equidigital number, since it uses as much as digits as its factorization.

1021012001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510506000563.

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

Adding to 1021012001122 its reverse (2211002101201), we get a palindrome (3232014102323).

The spelling of 1021012001122 in words is "one trillion, twenty-one billion, twelve million, one thousand, one hundred twenty-two".