121211022210122 has 8 divisors (see below), whose sum is σ = 195802420493316. Its totient is φ = 55943548712352.

The previous prime is 121211022210049. The next prime is 121211022210143. The reversal of 121211022210122 is 221012220112121.

It can be written as a sum of positive squares in 2 ways, for example, as 88969396304881 + 32241625905241 = 9432359^2 + 5678171^2 .

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

It is a super-2 number, since 2×121211022210122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121211022210094 and 121211022210103.

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, 2330981196323 + ... + 2330981196374.

Almost surely, 2^{121211022210122} is an apocalyptic number.

121211022210122 is a deficient number, since it is larger than the sum of its proper divisors (74591398283194).

121211022210122 is a wasteful number, since it uses less digits than its factorization.

121211022210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661962392712.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121211022210122 its reverse (221012220112121), we get a palindrome (342223242322243).

The spelling of 121211022210122 in words is "one hundred twenty-one trillion, two hundred eleven billion, twenty-two million, two hundred ten thousand, one hundred twenty-two".