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10210220022121 = 71458602860303
BaseRepresentation
bin1001010010010100000010…
…0010011001100101101001
31100011002100210021212001121
42110211000202121211221
52314241012311201441
633414302121415241
72102443525141210
oct224450042314551
940132323255047
1010210220022121
113287148028099
12118a98603a521
13590a8690c662
1427426a688077
1512a8d0736dd1
hex94940899969

10210220022121 has 4 divisors (see below), whose sum is σ = 11668822882432. Its totient is φ = 8751617161812.

The previous prime is 10210220022113. The next prime is 10210220022139. The reversal of 10210220022121 is 12122002201201.

It is a happy number.

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 not a de Polignac number, because 10210220022121 - 23 = 10210220022113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210220022095 and 10210220022104.

It is not an unprimeable number, because it can be changed into a prime (10210220082121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729301430145 + ... + 729301430158.

It is an arithmetic number, because the mean of its divisors is an integer number (2917205720608).

Almost surely, 210210220022121 is an apocalyptic number.

It is an amenable number.

10210220022121 is a deficient number, since it is larger than the sum of its proper divisors (1458602860311).

10210220022121 is an equidigital number, since it uses as much as digits as its factorization.

10210220022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458602860310.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10210220022121 its reverse (12122002201201), we get a palindrome (22332222223322).

The spelling of 10210220022121 in words is "ten trillion, two hundred ten billion, two hundred twenty million, twenty-two thousand, one hundred twenty-one".

Divisors: 1 7 1458602860303 10210220022121