1201023220201 has 4 divisors (see below), whose sum is σ = 1372597965952. Its totient is φ = 1029448474452.

The previous prime is 1201023220169. The next prime is 1201023220231. The reversal of 1201023220201 is 1020223201021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201023220201 - 2⁵ = 1201023220169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201023220231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85787372865 + ... + 85787372878.

It is an arithmetic number, because the mean of its divisors is an integer number (343149491488).

Almost surely, 2^{1201023220201} is an apocalyptic number.

It is an amenable number.

1201023220201 is a deficient number, since it is larger than the sum of its proper divisors (171574745751).

1201023220201 is an equidigital number, since it uses as much as digits as its factorization.

1201023220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171574745750.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1201023220201 its reverse (1020223201021), we get a palindrome (2221246421222).

The spelling of 1201023220201 in words is "one trillion, two hundred one billion, twenty-three million, two hundred twenty thousand, two hundred one".