10212021122 has 4 divisors (see below), whose sum is σ = 15318031686. Its totient is φ = 5106010560.

The previous prime is 10212021107. The next prime is 10212021217. The reversal of 10212021122 is 22112021201.

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., 5138165761 + 5073855361 = 71681^2 + 71231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10212021097 and 10212021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553005279 + ... + 2553005282.

Almost surely, 2^10212021122 is an apocalyptic number.

10212021122 is a deficient number, since it is larger than the sum of its proper divisors (5106010564).

10212021122 is an equidigital number, since it uses as much as digits as its factorization.

10212021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106010563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10212021122 its reverse (22112021201), we get a palindrome (32324042323).

The spelling of 10212021122 in words is "ten billion, two hundred twelve million, twenty-one thousand, one hundred twenty-two".