1020001100022 has 48 divisors (see below), whose sum is σ = 2349600615648. Its totient is φ = 319081551360.

The previous prime is 1020001100017. The next prime is 1020001100029. The reversal of 1020001100022 is 2200011000201.

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

It is a junction number, because it is equal to n+sod(n) for n = 1020001099977 and 1020001100013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020001100029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23221179 + ... + 23265062.

It is an arithmetic number, because the mean of its divisors is an integer number (48950012826).

Almost surely, 2^{1020001100022} is an apocalyptic number.

1020001100022 is an abundant number, since it is smaller than the sum of its proper divisors (1329599515626).

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

1020001100022 is a wasteful number, since it uses less digits than its factorization.

1020001100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46486325 (or 46486322 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020001100022 its reverse (2200011000201), we get a palindrome (3220012100223).

The spelling of 1020001100022 in words is "one trillion, twenty billion, one million, one hundred thousand, twenty-two".