1021221002211 has 8 divisors (see below), whose sum is σ = 1367573977680. Its totient is φ = 677841014112.

The previous prime is 1021221002209. The next prime is 1021221002227. The reversal of 1021221002211 is 1122001221201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021221002211 - 2¹ = 1021221002209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021221072211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743246040 + ... + 743247413.

It is an arithmetic number, because the mean of its divisors is an integer number (170946747210).

Almost surely, 2^{1021221002211} is an apocalyptic number.

1021221002211 is a deficient number, since it is larger than the sum of its proper divisors (346352975469).

1021221002211 is a wasteful number, since it uses less digits than its factorization.

1021221002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486493685.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021221002211 its reverse (1122001221201), we get a palindrome (2143222223412).

The spelling of 1021221002211 in words is "one trillion, twenty-one billion, two hundred twenty-one million, two thousand, two hundred eleven".