121020012220122 has 24 divisors (see below), whose sum is σ = 262818402425280. Its totient is φ = 40246407773640.

The previous prime is 121020012220103. The next prime is 121020012220127. The reversal of 121020012220122 is 221022210020121.

It is a happy number.

121020012220122 is a `hidden beast` number, since 1 + 210 + 200 + 12 + 220 + 1 + 22 = 666.

It is a super-2 number, since 2×121020012220122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121020012220095 and 121020012220104.

It is not an unprimeable number, because it can be changed into a prime (121020012220127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7799683672 + ... + 7799699187.

It is an arithmetic number, because the mean of its divisors is an integer number (10950766767720).

Almost surely, 2^{121020012220122} is an apocalyptic number.

121020012220122 is an abundant number, since it is smaller than the sum of its proper divisors (141798390205158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121020012220122 is a wasteful number, since it uses less digits than its factorization.

121020012220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15599383298 (or 15599383295 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121020012220122 its reverse (221022210020121), we get a palindrome (342042222240243).

The spelling of 121020012220122 in words is "one hundred twenty-one trillion, twenty billion, twelve million, two hundred twenty thousand, one hundred twenty-two".