21011101210010 has 16 divisors (see below), whose sum is σ = 37821387200256. Its totient is φ = 8404128256848.

The previous prime is 21011101210003. The next prime is 21011101210037. The reversal of 21011101210010 is 1001210111012.

It is a super-2 number, since 2×21011101210010² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21011101209973 and 21011101210000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38745662 + ... + 39284201.

It is an arithmetic number, because the mean of its divisors is an integer number (2363836700016).

Almost surely, 2^{21011101210010} is an apocalyptic number.

21011101210010 is a deficient number, since it is larger than the sum of its proper divisors (16810285990246).

21011101210010 is a wasteful number, since it uses less digits than its factorization.

21011101210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78056797.

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

Adding to 21011101210010 its reverse (1001210111012), we get a palindrome (22012311321022).

The spelling of 21011101210010 in words is "twenty-one trillion, eleven billion, one hundred one million, two hundred ten thousand, ten".