1021220210011 has 8 divisors (see below), whose sum is σ = 1024006525200. Its totient is φ = 1018436170752.

The previous prime is 1021220210009. The next prime is 1021220210053. The reversal of 1021220210011 is 1100120221201.

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 1021220210011 - 2¹ = 1021220210009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021220209973 and 1021220210000.

It is not an unprimeable number, because it can be changed into a prime (1021220210711) 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, 331591 + ... + 1467103.

It is an arithmetic number, because the mean of its divisors is an integer number (128000815650).

Almost surely, 2^{1021220210011} is an apocalyptic number.

1021220210011 is a deficient number, since it is larger than the sum of its proper divisors (2786315189).

1021220210011 is a wasteful number, since it uses less digits than its factorization.

1021220210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137965.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021220210011 its reverse (1100120221201), we get a palindrome (2121340431212).

The spelling of 1021220210011 in words is "one trillion, twenty-one billion, two hundred twenty million, two hundred ten thousand, eleven".