10221212001202 has 4 divisors (see below), whose sum is σ = 15331818001806. Its totient is φ = 5110606000600.

The previous prime is 10221212001157. The next prime is 10221212001289. The reversal of 10221212001202 is 20210021212201.

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., 9444502922481 + 776709078721 = 3073191^2 + 881311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555303000299 + ... + 2555303000302.

Almost surely, 2^{10221212001202} is an apocalyptic number.

10221212001202 is a deficient number, since it is larger than the sum of its proper divisors (5110606000604).

10221212001202 is an equidigital number, since it uses as much as digits as its factorization.

10221212001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110606000603.

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

Adding to 10221212001202 its reverse (20210021212201), we get a palindrome (30431233213403).

The spelling of 10221212001202 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, one thousand, two hundred two".