10202220212122 has 4 divisors (see below), whose sum is σ = 15303330318186. Its totient is φ = 5101110106060.

The previous prime is 10202220212083. The next prime is 10202220212143. The reversal of 10202220212122 is 22121202220201.

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., 10154744595801 + 47475616321 = 3186651^2 + 217889^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10202220212122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550555053029 + ... + 2550555053032.

Almost surely, 2^{10202220212122} is an apocalyptic number.

10202220212122 is a deficient number, since it is larger than the sum of its proper divisors (5101110106064).

10202220212122 is an equidigital number, since it uses as much as digits as its factorization.

10202220212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101110106063.

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

Adding to 10202220212122 its reverse (22121202220201), we get a palindrome (32323422432323).

The spelling of 10202220212122 in words is "ten trillion, two hundred two billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty-two".