1022021011 has 8 divisors (see below), whose sum is σ = 1180516464. Its totient is φ = 874456320.

The previous prime is 1022021009. The next prime is 1022021017. The reversal of 1022021011 is 1101202201.

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 1022021011 - 2¹ = 1022021009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022021017) 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, 2732490 + ... + 2732863.

It is an arithmetic number, because the mean of its divisors is an integer number (147564558).

Almost surely, 2^1022021011 is an apocalyptic number.

1022021011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1022021011 is a deficient number, since it is larger than the sum of its proper divisors (158495453).

1022021011 is a wasteful number, since it uses less digits than its factorization.

1022021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465381.

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

The square root of 1022021011 is about 31969.0633425504. The cubic root of 1022021011 is about 1007.2871060983.

Adding to 1022021011 its reverse (1101202201), we get a palindrome (2123223212).

The spelling of 1022021011 in words is "one billion, twenty-two million, twenty-one thousand, eleven".