1101022021 has 8 divisors (see below), whose sum is σ = 1201356288. Its totient is φ = 1000728000.

The previous prime is 1101021979. The next prime is 1101022049. The reversal of 1101022021 is 1202201011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101022021 - 2¹⁷ = 1100890949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101021989 and 1101022007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101022421) 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, 93916 + ... + 104986.

It is an arithmetic number, because the mean of its divisors is an integer number (150169536).

Almost surely, 2^1101022021 is an apocalyptic number.

1101022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101022021 is a deficient number, since it is larger than the sum of its proper divisors (100334267).

1101022021 is a wasteful number, since it uses less digits than its factorization.

1101022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20123.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1101022021 is about 33181.6518726841. The cubic root of 1101022021 is about 1032.5997170878.

Adding to 1101022021 its reverse (1202201011), we get a palindrome (2303223032).

It can be divided in two parts, 11010 and 22021, that multiplied together give a triangular number (242451210 = T₂₂₀₂₀).

The spelling of 1101022021 in words is "one billion, one hundred one million, twenty-two thousand, twenty-one".