202100101011 has 6 divisors (see below), whose sum is σ = 291922368140. Its totient is φ = 134733400668.

The previous prime is 202100100991. The next prime is 202100101031. The reversal of 202100101011 is 110101001202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202100100991) and next prime (202100101031).

It is not a de Polignac number, because 202100101011 - 2⁶ = 202100100947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 22455566779 = 202100101011 / (2 + 0 + 2 + 1 + 0 + 0 + 1 + 0 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202100100984 and 202100101002.

It is not an unprimeable number, because it can be changed into a prime (202100101031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11227783381 + ... + 11227783398.

Almost surely, 2^202100101011 is an apocalyptic number.

202100101011 is a deficient number, since it is larger than the sum of its proper divisors (89822267129).

202100101011 is a wasteful number, since it uses less digits than its factorization.

202100101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22455566785 (or 22455566782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 202100101011 its reverse (110101001202), we get a palindrome (312201102213).

The spelling of 202100101011 in words is "two hundred two billion, one hundred million, one hundred one thousand, eleven".