1022111111020 has 24 divisors (see below), whose sum is σ = 2146718435904. Its totient is φ = 408790139136.

The previous prime is 1022111110997. The next prime is 1022111111101. The reversal of 1022111111020 is 201111112201.

It is a happy number.

It is a super-2 number, since 2×1022111111020² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239572 + ... + 3541051.

It is an arithmetic number, because the mean of its divisors is an integer number (89446601496).

Almost surely, 2^{1022111111020} is an apocalyptic number.

1022111111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022111111020 is an abundant number, since it is smaller than the sum of its proper divisors (1124607324884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022111111020 is a wasteful number, since it uses less digits than its factorization.

1022111111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788169 (or 6788167 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1022111111020 its reverse (201111112201), we get a palindrome (1223222223221).

The spelling of 1022111111020 in words is "one trillion, twenty-two billion, one hundred eleven million, one hundred eleven thousand, twenty".