121212222201022 has 16 divisors (see below), whose sum is σ = 184376533199040. Its totient is φ = 59753986250112.

The previous prime is 121212222201013. The next prime is 121212222201113. The reversal of 121212222201022 is 220102222212121.

It is a junction number, because it is equal to n+sod(n) for n = 121212222200984 and 121212222201002.

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, 151712358 + ... + 152509225.

It is an arithmetic number, because the mean of its divisors is an integer number (11523533324940).

Almost surely, 2^{121212222201022} is an apocalyptic number.

121212222201022 is a deficient number, since it is larger than the sum of its proper divisors (63164310998018).

121212222201022 is a wasteful number, since it uses less digits than its factorization.

121212222201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304224387.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121212222201022 its reverse (220102222212121), we get a palindrome (341314444413143).

The spelling of 121212222201022 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred twenty-two million, two hundred one thousand, twenty-two".