10211111210122 has 4 divisors (see below), whose sum is σ = 15316666815186. Its totient is φ = 5105555605060.

The previous prime is 10211111210119. The next prime is 10211111210137. The reversal of 10211111210122 is 22101211111201.

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., 10182678842961 + 28432367161 = 3191031^2 + 168619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10211111210096 and 10211111210105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552777802529 + ... + 2552777802532.

Almost surely, 2^{10211111210122} is an apocalyptic number.

10211111210122 is a deficient number, since it is larger than the sum of its proper divisors (5105555605064).

10211111210122 is an equidigital number, since it uses as much as digits as its factorization.

10211111210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105555605063.

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

Adding to 10211111210122 its reverse (22101211111201), we get a palindrome (32312322321323).

The spelling of 10211111210122 in words is "ten trillion, two hundred eleven billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-two".