10121202020122 has 4 divisors (see below), whose sum is σ = 15181803030186. Its totient is φ = 5060601010060.

The previous prime is 10121202020071. The next prime is 10121202020129. The reversal of 10121202020122 is 22102020212101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8798704320121 + 1322497700001 = 2966261^2 + 1149999^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10121202020096 and 10121202020105.

It is not an unprimeable number, because it can be changed into a prime (10121202020129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530300505029 + ... + 2530300505032.

Almost surely, 2^{10121202020122} is an apocalyptic number.

10121202020122 is a deficient number, since it is larger than the sum of its proper divisors (5060601010064).

10121202020122 is an equidigital number, since it uses as much as digits as its factorization.

10121202020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060601010063.

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

Adding to 10121202020122 its reverse (22102020212101), we get a palindrome (32223222232223).

The spelling of 10121202020122 in words is "ten trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, one hundred twenty-two".