1122010202021 has 4 divisors (see below), whose sum is σ = 1122068546892. Its totient is φ = 1121951857152.

The previous prime is 1122010202017. The next prime is 1122010202113. The reversal of 1122010202021 is 1202020102211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 349175809921 + 772834392100 = 590911^2 + 879110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122010202021 - 2² = 1122010202017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122010201987 and 1122010202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122010282021) 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, 29143580 + ... + 29182053.

It is an arithmetic number, because the mean of its divisors is an integer number (280517136723).

Almost surely, 2^{1122010202021} is an apocalyptic number.

It is an amenable number.

1122010202021 is a deficient number, since it is larger than the sum of its proper divisors (58344871).

1122010202021 is an equidigital number, since it uses as much as digits as its factorization.

1122010202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58344870.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1122010202021 its reverse (1202020102211), we get a palindrome (2324030304232).

The spelling of 1122010202021 in words is "one trillion, one hundred twenty-two billion, ten million, two hundred two thousand, twenty-one".