121212223002124 has 48 divisors (see below), whose sum is σ = 216138614630400. Its totient is φ = 59466971805696.

The previous prime is 121212223002121. The next prime is 121212223002191. The reversal of 121212223002124 is 421200322212121.

It is a super-2 number, since 2×121212223002124² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121212223002121) 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, 662527492 + ... + 662710420.

It is an arithmetic number, because the mean of its divisors is an integer number (4502887804800).

Almost surely, 2^{121212223002124} is an apocalyptic number.

It is an amenable number.

121212223002124 is a deficient number, since it is larger than the sum of its proper divisors (94926391628276).

121212223002124 is a wasteful number, since it uses less digits than its factorization.

121212223002124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194722 (or 194720 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 121212223002124 its reverse (421200322212121), we get a palindrome (542412545214245).

The spelling of 121212223002124 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred twenty-three million, two thousand, one hundred twenty-four".