1010101221011 has 16 divisors (see below), whose sum is σ = 1082736499680. Its totient is φ = 938989601280.

The previous prime is 1010101220957. The next prime is 1010101221029. The reversal of 1010101221011 is 1101221010101.

It is a cyclic number.

It is not a de Polignac number, because 1010101221011 - 2¹⁰ = 1010101219987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010101220983 and 1010101221001.

It is not an unprimeable number, because it can be changed into a prime (1010101221511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272405 + ... + 1447206.

It is an arithmetic number, because the mean of its divisors is an integer number (67671031230).

Almost surely, 2^{1010101221011} is an apocalyptic number.

1010101221011 is a deficient number, since it is larger than the sum of its proper divisors (72635278669).

1010101221011 is a wasteful number, since it uses less digits than its factorization.

1010101221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720054.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1010101221011 its reverse (1101221010101), we get a palindrome (2111322231112).

The spelling of 1010101221011 in words is "one trillion, ten billion, one hundred one million, two hundred twenty-one thousand, eleven".