121020020223 has 16 divisors (see below), whose sum is σ = 170935161696. Its totient is φ = 75897077760.

The previous prime is 121020020203. The next prime is 121020020243. The reversal of 121020020223 is 322020020121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121020020203) and next prime (121020020243).

It is not a de Polignac number, because 121020020223 - 2⁹ = 121020019711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020020203) 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, 473218 + ... + 682623.

It is an arithmetic number, because the mean of its divisors is an integer number (10683447606).

Almost surely, 2^121020020223 is an apocalyptic number.

121020020223 is a deficient number, since it is larger than the sum of its proper divisors (49915141473).

121020020223 is a wasteful number, since it uses less digits than its factorization.

121020020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157914.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 121020020223 its reverse (322020020121), we get a palindrome (443040040344).

The spelling of 121020020223 in words is "one hundred twenty-one billion, twenty million, twenty thousand, two hundred twenty-three".