121002121222 has 16 divisors (see below), whose sum is σ = 183328676352. Its totient is φ = 59893360200.

The previous prime is 121002121213. The next prime is 121002121277. The reversal of 121002121222 is 222121200121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121002121196 and 121002121205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105847 + ... + 503197.

It is an arithmetic number, because the mean of its divisors is an integer number (11458042272).

Almost surely, 2^121002121222 is an apocalyptic number.

121002121222 is a deficient number, since it is larger than the sum of its proper divisors (62326555130).

121002121222 is a wasteful number, since it uses less digits than its factorization.

121002121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398883.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121002121222 its reverse (222121200121), we get a palindrome (343123321343).

The spelling of 121002121222 in words is "one hundred twenty-one billion, two million, one hundred twenty-one thousand, two hundred twenty-two".