1022001021023 has 16 divisors (see below), whose sum is σ = 1129211559936. Its totient is φ = 920026293120.

The previous prime is 1022001020987. The next prime is 1022001021047. The reversal of 1022001021023 is 3201201002201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1022001021023 - 2¹⁴ = 1022001004639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022001020989 and 1022001021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022001021323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19391918 + ... + 19444548.

It is an arithmetic number, because the mean of its divisors is an integer number (70575722496).

Almost surely, 2^{1022001021023} is an apocalyptic number.

1022001021023 is a deficient number, since it is larger than the sum of its proper divisors (107210538913).

1022001021023 is a wasteful number, since it uses less digits than its factorization.

1022001021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102334.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1022001021023 its reverse (3201201002201), we get a palindrome (4223202023224).

The spelling of 1022001021023 in words is "one trillion, twenty-two billion, one million, twenty-one thousand, twenty-three".