1021211201011 has 8 divisors (see below), whose sum is σ = 1027327761200. Its totient is φ = 1015109051040.

The previous prime is 1021211200937. The next prime is 1021211201027. The reversal of 1021211201011 is 1101021121201.

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 1021211201011 - 2¹³ = 1021211192819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021211200982 and 1021211201000.

It is not an unprimeable number, because it can be changed into a prime (1021211201041) 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, 3460380 + ... + 3743881.

It is an arithmetic number, because the mean of its divisors is an integer number (128415970150).

Almost surely, 2^{1021211201011} is an apocalyptic number.

1021211201011 is a deficient number, since it is larger than the sum of its proper divisors (6116560189).

1021211201011 is an equidigital number, since it uses as much as digits as its factorization.

1021211201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205109.

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

Adding to 1021211201011 its reverse (1101021121201), we get a palindrome (2122232322212).

The spelling of 1021211201011 in words is "one trillion, twenty-one billion, two hundred eleven million, two hundred one thousand, eleven".