121100212222 has 16 divisors (see below), whose sum is σ = 199917651312. Its totient is φ = 54558421120.

The previous prime is 121100212213. The next prime is 121100212273. The reversal of 121100212222 is 222212001121.

It is a happy number.

121100212222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121100212222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121100212196 and 121100212205.

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, 24353953 + ... + 24358924.

It is an arithmetic number, because the mean of its divisors is an integer number (12494853207).

Almost surely, 2^121100212222 is an apocalyptic number.

121100212222 is a deficient number, since it is larger than the sum of its proper divisors (78817439090).

121100212222 is a wasteful number, since it uses less digits than its factorization.

121100212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48713003.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121100212222 its reverse (222212001121), we get a palindrome (343312213343).

The spelling of 121100212222 in words is "one hundred twenty-one billion, one hundred million, two hundred twelve thousand, two hundred twenty-two".