1020001002201 has 48 divisors (see below), whose sum is σ = 1593505315584. Its totient is φ = 626260833792.

The previous prime is 1020001002199. The next prime is 1020001002211. The reversal of 1020001002201 is 1022001000201.

It is not a de Polignac number, because 1020001002201 - 2¹ = 1020001002199 is a prime.

It is a super-3 number, since 3×1020001002201³ (a number of 37 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1020001002211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48406470 + ... + 48427536.

It is an arithmetic number, because the mean of its divisors is an integer number (33198027408).

Almost surely, 2^{1020001002201} is an apocalyptic number.

It is an amenable number.

1020001002201 is a deficient number, since it is larger than the sum of its proper divisors (573504313383).

1020001002201 is a wasteful number, since it uses less digits than its factorization.

1020001002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27870 (or 27867 counting only the distinct ones).

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

Adding to 1020001002201 its reverse (1022001000201), we get a palindrome (2042002002402).

The spelling of 1020001002201 in words is "one trillion, twenty billion, one million, two thousand, two hundred one".