1220022220101 has 4 divisors (see below), whose sum is σ = 1626696293472. Its totient is φ = 813348146732.

The previous prime is 1220022220051. The next prime is 1220022220111. The reversal of 1220022220101 is 1010222200221.

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 1220022220101 - 2⁶ = 1220022220037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220022220111) 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, 203337036681 + ... + 203337036686.

It is an arithmetic number, because the mean of its divisors is an integer number (406674073368).

Almost surely, 2^{1220022220101} is an apocalyptic number.

It is an amenable number.

1220022220101 is a deficient number, since it is larger than the sum of its proper divisors (406674073371).

1220022220101 is an equidigital number, since it uses as much as digits as its factorization.

1220022220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406674073370.

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

Adding to 1220022220101 its reverse (1010222200221), we get a palindrome (2230244420322).

The spelling of 1220022220101 in words is "one trillion, two hundred twenty billion, twenty-two million, two hundred twenty thousand, one hundred one".