1022012011 has 4 divisors (see below), whose sum is σ = 1026084024. Its totient is φ = 1017940000.

The previous prime is 1022011973. The next prime is 1022012021. The reversal of 1022012011 is 1102102201.

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

It is a cyclic number.

It is not a de Polignac number, because 1022012011 - 2⁹ = 1022011499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022012021) 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, 2035630 + ... + 2036131.

It is an arithmetic number, because the mean of its divisors is an integer number (256521006).

Almost surely, 2^1022012011 is an apocalyptic number.

1022012011 is a deficient number, since it is larger than the sum of its proper divisors (4072013).

1022012011 is an equidigital number, since it uses as much as digits as its factorization.

1022012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072012.

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

The square root of 1022012011 is about 31968.9225811568. The cubic root of 1022012011 is about 1007.2841493389.

Adding to 1022012011 its reverse (1102102201), we get a palindrome (2124114212).

The spelling of 1022012011 in words is "one billion, twenty-two million, twelve thousand, eleven".