101011100121210 has 192 divisors, whose sum is σ = 271135798778880. Its totient is φ = 24037696650240.

The previous prime is 101011100121209. The next prime is 101011100121221. The reversal of 101011100121210 is 12121001110101.

It is a super-2 number, since 2×101011100121210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8954679 + ... + 16799061.

It is an arithmetic number, because the mean of its divisors is an integer number (1412165618640).

Almost surely, 2^{101011100121210} is an apocalyptic number.

101011100121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101011100121210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135567899389440).

101011100121210 is an abundant number, since it is smaller than the sum of its proper divisors (170124698657670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101011100121210 is a wasteful number, since it uses less digits than its factorization.

101011100121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844501 (or 7844482 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101011100121210 its reverse (12121001110101), we get a palindrome (113132101231311).

The spelling of 101011100121210 in words is "one hundred one trillion, eleven billion, one hundred million, one hundred twenty-one thousand, two hundred ten".