1011122022021 has 16 divisors (see below), whose sum is σ = 1368468024768. Its totient is φ = 663931382400.

The previous prime is 1011122021993. The next prime is 1011122022059. The reversal of 1011122022021 is 1202202211101.

It is not a de Polignac number, because 1011122022021 - 2⁹ = 1011122021509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011122026021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182201 + ... + 1849281.

It is an arithmetic number, because the mean of its divisors is an integer number (85529251548).

Almost surely, 2^{1011122022021} is an apocalyptic number.

It is an amenable number.

1011122022021 is a deficient number, since it is larger than the sum of its proper divisors (357346002747).

1011122022021 is an equidigital number, since it uses as much as digits as its factorization.

1011122022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674692.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1011122022021 its reverse (1202202211101), we get a palindrome (2213324233122).

The spelling of 1011122022021 in words is "one trillion, eleven billion, one hundred twenty-two million, twenty-two thousand, twenty-one".