121222212212210 has 32 divisors (see below), whose sum is σ = 220831731388800. Its totient is φ = 47904066678528.

The previous prime is 121222212212173. The next prime is 121222212212219. The reversal of 121222212212210 is 12212212222121.

121222212212210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121222212212219) 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, 66717866 + ... + 68510714.

It is an arithmetic number, because the mean of its divisors is an integer number (6900991605900).

Almost surely, 2^{121222212212210} is an apocalyptic number.

121222212212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222212212210 is a deficient number, since it is larger than the sum of its proper divisors (99609519176590).

121222212212210 is a wasteful number, since it uses less digits than its factorization.

121222212212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874402.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121222212212210 its reverse (12212212222121), we get a palindrome (133434424434331).

The spelling of 121222212212210 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred twelve thousand, two hundred ten".