121221210020222 has 32 divisors (see below), whose sum is σ = 201335151153024. Its totient is φ = 54382243449600.

The previous prime is 121221210020173. The next prime is 121221210020231. The reversal of 121221210020222 is 222020012122121.

It is a junction number, because it is equal to n+sod(n) for n = 121221210020194 and 121221210020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209519153 + ... + 210096924.

It is an arithmetic number, because the mean of its divisors is an integer number (6291723473532).

Almost surely, 2^{121221210020222} is an apocalyptic number.

121221210020222 is a deficient number, since it is larger than the sum of its proper divisors (80113941132802).

121221210020222 is a wasteful number, since it uses less digits than its factorization.

121221210020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419616404.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121221210020222 its reverse (222020012122121), we get a palindrome (343241222142343).

The spelling of 121221210020222 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred ten million, twenty thousand, two hundred twenty-two".