1220220102201 has 4 divisors (see below), whose sum is σ = 1626960136272. Its totient is φ = 813480068132.

The previous prime is 1220220102131. The next prime is 1220220102209. The reversal of 1220220102201 is 1022010220221.

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 1220220102201 - 2⁹ = 1220220101689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220220102209) 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, 203370017031 + ... + 203370017036.

It is an arithmetic number, because the mean of its divisors is an integer number (406740034068).

Almost surely, 2^{1220220102201} is an apocalyptic number.

It is an amenable number.

1220220102201 is a deficient number, since it is larger than the sum of its proper divisors (406740034071).

1220220102201 is an equidigital number, since it uses as much as digits as its factorization.

1220220102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406740034070.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1220220102201 its reverse (1022010220221), we get a palindrome (2242230322422).

The spelling of 1220220102201 in words is "one trillion, two hundred twenty billion, two hundred twenty million, one hundred two thousand, two hundred one".