121000121212222 has 64 divisors (see below), whose sum is σ = 218440668441600. Its totient is φ = 49145779710720.

The previous prime is 121000121212207. The next prime is 121000121212259. The reversal of 121000121212222 is 222212121000121.

It is a super-3 number, since 3×121000121212222³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121000121212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1835276554 + ... + 1835342482.

It is an arithmetic number, because the mean of its divisors is an integer number (3413135444400).

Almost surely, 2^{121000121212222} is an apocalyptic number.

121000121212222 is a deficient number, since it is larger than the sum of its proper divisors (97440547229378).

121000121212222 is a wasteful number, since it uses less digits than its factorization.

121000121212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118361.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121000121212222 its reverse (222212121000121), we get a palindrome (343212242212343).

The spelling of 121000121212222 in words is "one hundred twenty-one trillion, one hundred twenty-one million, two hundred twelve thousand, two hundred twenty-two".