10202001221012 has 6 divisors (see below), whose sum is σ = 17853502136778. Its totient is φ = 5101000610504.

The previous prime is 10202001221003. The next prime is 10202001221021. The reversal of 10202001221012 is 21012210020201.

It is an interprime number because it is at equal distance from previous prime (10202001221003) and next prime (10202001221021).

It can be written as a sum of positive squares in only one way, i.e., 9264194913796 + 937806307216 = 3043714^2 + 968404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275250152623 + ... + 1275250152630.

It is an arithmetic number, because the mean of its divisors is an integer number (2975583689463).

Almost surely, 2^{10202001221012} is an apocalyptic number.

It is an amenable number.

10202001221012 is a deficient number, since it is larger than the sum of its proper divisors (7651500915766).

10202001221012 is a wasteful number, since it uses less digits than its factorization.

10202001221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550500305257 (or 2550500305255 counting only the distinct ones).

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

Adding to 10202001221012 its reverse (21012210020201), we get a palindrome (31214211241213).

The spelling of 10202001221012 in words is "ten trillion, two hundred two billion, one million, two hundred twenty-one thousand, twelve".