121122100012222 has 16 divisors (see below), whose sum is σ = 181702414718352. Its totient is φ = 60554628815040.

The previous prime is 121122100012219. The next prime is 121122100012271. The reversal of 121122100012222 is 222210001221121.

It is a super-2 number, since 2×121122100012222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121122100012222.

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, 824486608 + ... + 824633500.

It is an arithmetic number, because the mean of its divisors is an integer number (11356400919897).

Almost surely, 2^{121122100012222} is an apocalyptic number.

121122100012222 is a deficient number, since it is larger than the sum of its proper divisors (60580314706130).

121122100012222 is a wasteful number, since it uses less digits than its factorization.

121122100012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187803.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121122100012222 its reverse (222210001221121), we get a palindrome (343332101233343).

The spelling of 121122100012222 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred million, twelve thousand, two hundred twenty-two".