10212211221122 has 4 divisors (see below), whose sum is σ = 15318316831686. Its totient is φ = 5106105610560.

The previous prime is 10212211221061. The next prime is 10212211221133. The reversal of 10212211221122 is 22112211221201.

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., 5362610064361 + 4849601156761 = 2315731^2 + 2202181^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10212211221094 and 10212211221103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553052805279 + ... + 2553052805282.

Almost surely, 2^{10212211221122} is an apocalyptic number.

10212211221122 is a deficient number, since it is larger than the sum of its proper divisors (5106105610564).

10212211221122 is an equidigital number, since it uses as much as digits as its factorization.

10212211221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106105610563.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10212211221122 its reverse (22112211221201), we get a palindrome (32324422442323).

The spelling of 10212211221122 in words is "ten trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty-two".