121120220122002 has 24 divisors (see below), whose sum is σ = 277864034398236. Its totient is φ = 37998500430336.

The previous prime is 121120220121997. The next prime is 121120220122039. The reversal of 121120220122002 is 200221022021121.

It is a happy number.

121120220122002 is a `hidden beast` number, since 1 + 211 + 20 + 220 + 12 + 200 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 105233929372881 + 15886290749121 = 10258359^2 + 3985761^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197908856103 + ... + 197908856714.

Almost surely, 2^{121120220122002} is an apocalyptic number.

121120220122002 is an abundant number, since it is smaller than the sum of its proper divisors (156743814276234).

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

121120220122002 is a wasteful number, since it uses less digits than its factorization.

121120220122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395817712842 (or 395817712839 counting only the distinct ones).

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

Adding to 121120220122002 its reverse (200221022021121), we get a palindrome (321341242143123).

The spelling of 121120220122002 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty million, one hundred twenty-two thousand, two".