1210010002221 has 48 divisors (see below), whose sum is σ = 1764230704704. Its totient is φ = 736979378688.

The previous prime is 1210010002217. The next prime is 1210010002237. The reversal of 1210010002221 is 1222000100121.

It is not a de Polignac number, because 1210010002221 - 2² = 1210010002217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1210010002197 and 1210010002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210010002291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4394410 + ... + 4661636.

It is an arithmetic number, because the mean of its divisors is an integer number (36754806348).

Almost surely, 2^{1210010002221} is an apocalyptic number.

It is an amenable number.

1210010002221 is a deficient number, since it is larger than the sum of its proper divisors (554220702483).

1210010002221 is a wasteful number, since it uses less digits than its factorization.

1210010002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267418 (or 267399 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210010002221 its reverse (1222000100121), we get a palindrome (2432010102342).

The spelling of 1210010002221 in words is "one trillion, two hundred ten billion, ten million, two thousand, two hundred twenty-one".