121010221123 has 8 divisors (see below), whose sum is σ = 134248628160. Its totient is φ = 108144727080.

The previous prime is 121010221121. The next prime is 121010221139. The reversal of 121010221123 is 321122010121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121010221123 - 2¹ = 121010221121 is a prime.

It is a super-2 number, since 2×121010221123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010221097 and 121010221106.

It is not an unprimeable number, because it can be changed into a prime (121010221121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93227565 + ... + 93228862.

It is an arithmetic number, because the mean of its divisors is an integer number (16781078520).

Almost surely, 2^121010221123 is an apocalyptic number.

121010221123 is a deficient number, since it is larger than the sum of its proper divisors (13238407037).

121010221123 is a wasteful number, since it uses less digits than its factorization.

121010221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186456497.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121010221123 its reverse (321122010121), we get a palindrome (442132231244).

The spelling of 121010221123 in words is "one hundred twenty-one billion, ten million, two hundred twenty-one thousand, one hundred twenty-three".