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10212021133021 = 23444000918827
BaseRepresentation
bin1001010010011010101111…
…1001000101111011011101
31100011021000022101202201201
42110212223321011323131
52314303204402224041
633415200541435501
72102536255263331
oct224465371057335
940137008352651
1010212021133021
1132879917803a4
12118b1a926bb91
13590cb2acb256
1427439b96d7c1
1512a98890e631
hex949abe45edd

10212021133021 has 4 divisors (see below), whose sum is σ = 10656022051872. Its totient is φ = 9768020214172.

The previous prime is 10212021133003. The next prime is 10212021133043. The reversal of 10212021133021 is 12033112021201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10212021133021 - 235 = 10177661394653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10212021133021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212021133091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222000459391 + ... + 222000459436.

It is an arithmetic number, because the mean of its divisors is an integer number (2664005512968).

Almost surely, 210212021133021 is an apocalyptic number.

It is an amenable number.

10212021133021 is a deficient number, since it is larger than the sum of its proper divisors (444000918851).

10212021133021 is an equidigital number, since it uses as much as digits as its factorization.

10212021133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444000918850.

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

Adding to 10212021133021 its reverse (12033112021201), we get a palindrome (22245133154222).

The spelling of 10212021133021 in words is "ten trillion, two hundred twelve billion, twenty-one million, one hundred thirty-three thousand, twenty-one".

Divisors: 1 23 444000918827 10212021133021