1020220121101 has 2 divisors, whose sum is σ = 1020220121102. Its totient is φ = 1020220121100.

The previous prime is 1020220121077. The next prime is 1020220121189. The reversal of 1020220121101 is 1011210220201.

1020220121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972422793225 + 47797327876 = 986115^2 + 218626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020220121101 - 2¹³ = 1020220112909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020220191101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510110060550 + 510110060551.

It is an arithmetic number, because the mean of its divisors is an integer number (510110060551).

Almost surely, 2^{1020220121101} is an apocalyptic number.

It is an amenable number.

1020220121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020220121101 is an equidigital number, since it uses as much as digits as its factorization.

1020220121101 is an evil number, because the sum of its binary digits is even.

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

Adding to 1020220121101 its reverse (1011210220201), we get a palindrome (2031430341302).

The spelling of 1020220121101 in words is "one trillion, twenty billion, two hundred twenty million, one hundred twenty-one thousand, one hundred one".