121220022222010 has 16 divisors (see below), whose sum is σ = 218269531477800. Its totient is φ = 48471677449216.

The previous prime is 121220022221971. The next prime is 121220022222017. The reversal of 121220022222010 is 10222220022121.

It can be written as a sum of positive squares in 4 ways, for example, as 68796789350689 + 52423232871321 = 8294383^2 + 7240389^2 .

It is not an unprimeable number, because it can be changed into a prime (121220022222017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2041398775 + ... + 2041458154.

Almost surely, 2^{121220022222010} is an apocalyptic number.

121220022222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220022222010 is a deficient number, since it is larger than the sum of its proper divisors (97049509255790).

121220022222010 is a wasteful number, since it uses less digits than its factorization.

121220022222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082859905.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121220022222010 its reverse (10222220022121), we get a palindrome (131442242244131).

The spelling of 121220022222010 in words is "one hundred twenty-one trillion, two hundred twenty billion, twenty-two million, two hundred twenty-two thousand, ten".