121210221120222 has 32 divisors (see below), whose sum is σ = 261304857934848. Its totient is φ = 37261639885536.

The previous prime is 121210221120217. The next prime is 121210221120227. The reversal of 121210221120222 is 222021122012121.

It is an interprime number because it is at equal distance from previous prime (121210221120217) and next prime (121210221120227).

It is a super-2 number, since 2×121210221120222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210221120227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704346058 + ... + 704518125.

It is an arithmetic number, because the mean of its divisors is an integer number (8165776810464).

Almost surely, 2^{121210221120222} is an apocalyptic number.

121210221120222 is an abundant number, since it is smaller than the sum of its proper divisors (140094636814626).

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

121210221120222 is a wasteful number, since it uses less digits than its factorization.

121210221120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408865304.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121210221120222 its reverse (222021122012121), we get a palindrome (343231343132343).

The spelling of 121210221120222 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-one million, one hundred twenty thousand, two hundred twenty-two".