20221002011 has 16 divisors (see below), whose sum is σ = 23767769088. Its totient is φ = 16842120000.

The previous prime is 20221001981. The next prime is 20221002013. The reversal of 20221002011 is 11020012202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20221002011 - 2¹⁸ = 20220739867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221001983 and 20221002001.

It is not an unprimeable number, because it can be changed into a prime (20221002013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68315 + ... + 212388.

It is an arithmetic number, because the mean of its divisors is an integer number (1485485568).

Almost surely, 2^20221002011 is an apocalyptic number.

20221002011 is a deficient number, since it is larger than the sum of its proper divisors (3546767077).

20221002011 is a wasteful number, since it uses less digits than its factorization.

20221002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281002.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221002011 its reverse (11020012202), we get a palindrome (31241014213).

The spelling of 20221002011 in words is "twenty billion, two hundred twenty-one million, two thousand, eleven".