121221020210222 has 8 divisors (see below), whose sum is σ = 182141294423256. Its totient is φ = 60507255402472.

The previous prime is 121221020210219. The next prime is 121221020210249. The reversal of 121221020210222 is 222012020122121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121221020210194 and 121221020210203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51627349853 + ... + 51627352200.

It is an arithmetic number, because the mean of its divisors is an integer number (22767661802907).

Almost surely, 2^{121221020210222} is an apocalyptic number.

121221020210222 is a deficient number, since it is larger than the sum of its proper divisors (60920274213034).

121221020210222 is a wasteful number, since it uses less digits than its factorization.

121221020210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103254702642.

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

Adding to 121221020210222 its reverse (222012020122121), we get a palindrome (343233040332343).

The spelling of 121221020210222 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred ten thousand, two hundred twenty-two".