1021011201211 has 8 divisors (see below), whose sum is σ = 1085504937120. Its totient is φ = 958192627392.

The previous prime is 1021011201131. The next prime is 1021011201233. The reversal of 1021011201211 is 1121021101201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1021011201211 - 2¹⁷ = 1021011070139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021011201191 and 1021011201200.

It is not an unprimeable number, because it can be changed into a prime (1021011201271) 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, 418789266 + ... + 418791703.

It is an arithmetic number, because the mean of its divisors is an integer number (135688117140).

Almost surely, 2^{1021011201211} is an apocalyptic number.

1021011201211 is a deficient number, since it is larger than the sum of its proper divisors (64493735909).

1021011201211 is an equidigital number, since it uses as much as digits as its factorization.

1021011201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837581045.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021011201211 its reverse (1121021101201), we get a palindrome (2142032302412).

The spelling of 1021011201211 in words is "one trillion, twenty-one billion, eleven million, two hundred one thousand, two hundred eleven".