1011020221010 has 16 divisors (see below), whose sum is σ = 1821261508056. Its totient is φ = 404091397248.

The previous prime is 1011020220871. The next prime is 1011020221061. The reversal of 1011020221010 is 101220201101.

It can be written as a sum of positive squares in 4 ways, for example, as 682965057889 + 328055163121 = 826417^2 + 572761^2 .

It is a super-2 number, since 2×1011020221010² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011020220982 and 1011020221000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39572987 + ... + 39598526.

Almost surely, 2^{1011020221010} is an apocalyptic number.

1011020221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011020221010 is a deficient number, since it is larger than the sum of its proper divisors (810241287046).

1011020221010 is a wasteful number, since it uses less digits than its factorization.

1011020221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79172797.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1011020221010 its reverse (101220201101), we get a palindrome (1112240422111).

The spelling of 1011020221010 in words is "one trillion, eleven billion, twenty million, two hundred twenty-one thousand, ten".