121020022111111 has 8 divisors (see below), whose sum is σ = 122826473950320. Its totient is φ = 119213575650048.

The previous prime is 121020022111091. The next prime is 121020022111117. The reversal of 121020022111111 is 111111220020121.

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 121020022111111 - 2¹⁹ = 121020021586823 is a prime.

It is a super-3 number, since 3×121020022111111³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020022111117) 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, 86866455 + ... + 88248631.

It is an arithmetic number, because the mean of its divisors is an integer number (15353309243790).

Almost surely, 2^{121020022111111} is an apocalyptic number.

121020022111111 is a deficient number, since it is larger than the sum of its proper divisors (1806451839209).

121020022111111 is a wasteful number, since it uses less digits than its factorization.

121020022111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689073.

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

Adding to 121020022111111 its reverse (111111220020121), we get a palindrome (232131242131232).

The spelling of 121020022111111 in words is "one hundred twenty-one trillion, twenty billion, twenty-two million, one hundred eleven thousand, one hundred eleven".