1022001101020 has 24 divisors (see below), whose sum is σ = 2146234377168. Its totient is φ = 408794332800.

The previous prime is 1022001100993. The next prime is 1022001101039. The reversal of 1022001101020 is 201011002201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1022001100988 and 1022001101006.

It is a congruent number.

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, 1137960 + ... + 1827280.

It is an arithmetic number, because the mean of its divisors is an integer number (89426432382).

Almost surely, 2^{1022001101020} is an apocalyptic number.

1022001101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022001101020 is an abundant number, since it is smaller than the sum of its proper divisors (1124233276148).

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

1022001101020 is a wasteful number, since it uses less digits than its factorization.

1022001101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763461 (or 763459 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1022001101020 its reverse (201011002201), we get a palindrome (1223012103221).

The spelling of 1022001101020 in words is "one trillion, twenty-two billion, one million, one hundred one thousand, twenty".