1022020211 has 8 divisors (see below), whose sum is σ = 1045201344. Its totient is φ = 999072360.

The previous prime is 1022020201. The next prime is 1022020267. The reversal of 1022020211 is 1120202201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022020211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022020192 and 1022020201.

It is not an unprimeable number, because it can be changed into a prime (1022020201) 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, 49445 + ... + 66998.

It is an arithmetic number, because the mean of its divisors is an integer number (130650168).

Almost surely, 2^1022020211 is an apocalyptic number.

1022020211 is a deficient number, since it is larger than the sum of its proper divisors (23181133).

1022020211 is a wasteful number, since it uses less digits than its factorization.

1022020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116641.

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

The square root of 1022020211 is about 31969.0508304516. The cubic root of 1022020211 is about 1007.2868432759.

Adding to 1022020211 its reverse (1120202201), we get a palindrome (2142222412).

The spelling of 1022020211 in words is "one billion, twenty-two million, twenty thousand, two hundred eleven".