1021202001011 has 4 divisors (see below), whose sum is σ = 1035191069592. Its totient is φ = 1007212932432.

The previous prime is 1021202000993. The next prime is 1021202001047. The reversal of 1021202001011 is 1101002021201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021202001011 - 2⁶ = 1021202000947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021202000983 and 1021202001001.

It is not an unprimeable number, because it can be changed into a prime (1021202031011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6994534181 + ... + 6994534326.

It is an arithmetic number, because the mean of its divisors is an integer number (258797767398).

Almost surely, 2^{1021202001011} is an apocalyptic number.

1021202001011 is a deficient number, since it is larger than the sum of its proper divisors (13989068581).

1021202001011 is an equidigital number, since it uses as much as digits as its factorization.

1021202001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989068580.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021202001011 its reverse (1101002021201), we get a palindrome (2122204022212).

The spelling of 1021202001011 in words is "one trillion, twenty-one billion, two hundred two million, one thousand, eleven".