1201220122201 has 16 divisors (see below), whose sum is σ = 1349338915008. Its totient is φ = 1059863500800.

The previous prime is 1201220122181. The next prime is 1201220122259. The reversal of 1201220122201 is 1022210221021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201220122201 - 2⁷ = 1201220122073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201220122261) 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, 6813111 + ... + 6987196.

It is an arithmetic number, because the mean of its divisors is an integer number (84333682188).

Almost surely, 2^{1201220122201} is an apocalyptic number.

1201220122201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201220122201 is a deficient number, since it is larger than the sum of its proper divisors (148118792807).

1201220122201 is a wasteful number, since it uses less digits than its factorization.

1201220122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800552.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1201220122201 its reverse (1022210221021), we get a palindrome (2223430343222).

The spelling of 1201220122201 in words is "one trillion, two hundred one billion, two hundred twenty million, one hundred twenty-two thousand, two hundred one".