1010001102021 has 32 divisors (see below), whose sum is σ = 1513276617600. Its totient is φ = 665695324800.

The previous prime is 1010001101983. The next prime is 1010001102043. The reversal of 1010001102021 is 1202011000101.

It is a happy number.

It is not a de Polignac number, because 1010001102021 - 2¹⁴ = 1010001085637 is a prime.

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 = 1010001101994 and 1010001102012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010001102521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29902875 + ... + 29936631.

It is an arithmetic number, because the mean of its divisors is an integer number (47289894300).

Almost surely, 2^{1010001102021} is an apocalyptic number.

It is an amenable number.

1010001102021 is a deficient number, since it is larger than the sum of its proper divisors (503275515579).

1010001102021 is a wasteful number, since it uses less digits than its factorization.

1010001102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46306 (or 46300 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1010001102021 its reverse (1202011000101), we get a palindrome (2212012102122).

It can be divided in two parts, 101000 and 1102021, that added together give a palindrome (1203021).

The spelling of 1010001102021 in words is "one trillion, ten billion, one million, one hundred two thousand, twenty-one".