121212024101 has 32 divisors (see below), whose sum is σ = 145224576000. Its totient is φ = 98971471872.

The previous prime is 121212024091. The next prime is 121212024107. The reversal of 121212024101 is 101420212121.

It is a de Polignac number, because none of the positive numbers 2^k-121212024101 is a prime.

It is a super-2 number, since 2×121212024101² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121212024101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212024107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41839085 + ... + 41841981.

It is an arithmetic number, because the mean of its divisors is an integer number (4538268000).

Almost surely, 2^121212024101 is an apocalyptic number.

It is an amenable number.

121212024101 is a deficient number, since it is larger than the sum of its proper divisors (24012551899).

121212024101 is a wasteful number, since it uses less digits than its factorization.

121212024101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121212024101 its reverse (101420212121), we get a palindrome (222632236222).

The spelling of 121212024101 in words is "one hundred twenty-one billion, two hundred twelve million, twenty-four thousand, one hundred one".