101220011236 has 12 divisors (see below), whose sum is σ = 187554726828. Its totient is φ = 47632946432.

The previous prime is 101220011147. The next prime is 101220011237. The reversal of 101220011236 is 632110022101.

It can be written as a sum of positive squares in 2 ways, for example, as 36910094400 + 64309916836 = 192120^2 + 253594^2 .

It is not an unprimeable number, because it can be changed into a prime (101220011237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744264721 + ... + 744264856.

It is an arithmetic number, because the mean of its divisors is an integer number (15629560569).

Almost surely, 2^101220011236 is an apocalyptic number.

It is an amenable number.

101220011236 is a deficient number, since it is larger than the sum of its proper divisors (86334715592).

101220011236 is a wasteful number, since it uses less digits than its factorization.

101220011236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488529598 (or 1488529596 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101220011236 its reverse (632110022101), we get a palindrome (733330033337).

The spelling of 101220011236 in words is "one hundred one billion, two hundred twenty million, eleven thousand, two hundred thirty-six".