1022101011 has 16 divisors (see below), whose sum is σ = 1532921120. Its totient is φ = 681399216.

The previous prime is 1022101007. The next prime is 1022101037. The reversal of 1022101011 is 1101012201.

It is a happy number.

It is not a de Polignac number, because 1022101011 - 2² = 1022101007 is a prime.

It is a super-3 number, since 3×1022101011³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022100984 and 1022101002.

It is not an unprimeable number, because it can be changed into a prime (1022101051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231490 + ... + 235863.

It is an arithmetic number, because the mean of its divisors is an integer number (95807570).

Almost surely, 2^1022101011 is an apocalyptic number.

1022101011 is a deficient number, since it is larger than the sum of its proper divisors (510820109).

1022101011 is an frugal number, since it uses more digits than its factorization.

1022101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467374 (or 467356 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1022101011 is about 31970.3145276990. The cubic root of 1022101011 is about 1007.3133876408.

Adding to 1022101011 its reverse (1101012201), we get a palindrome (2123113212).

The spelling of 1022101011 in words is "one billion, twenty-two million, one hundred one thousand, eleven".