1021011220201 has 8 divisors (see below), whose sum is σ = 1191696986880. Its totient is φ = 856532208768.

The previous prime is 1021011220169. The next prime is 1021011220241. The reversal of 1021011220201 is 1020221101201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021011220201 - 2⁵ = 1021011220169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021011220241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551688456 + ... + 1551689113.

It is an arithmetic number, because the mean of its divisors is an integer number (148962123360).

Almost surely, 2^{1021011220201} is an apocalyptic number.

It is an amenable number.

1021011220201 is a deficient number, since it is larger than the sum of its proper divisors (170685766679).

1021011220201 is an equidigital number, since it uses as much as digits as its factorization.

1021011220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103377623.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021011220201 its reverse (1020221101201), we get a palindrome (2041232321402).

The spelling of 1021011220201 in words is "one trillion, twenty-one billion, eleven million, two hundred twenty thousand, two hundred one".