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1022210202121 = 8945587251947
BaseRepresentation
bin11101110000000000111…
…10011101101000001001
310121201111120211121001121
432320000132131220021
5113221441302431441
62101332532115241
7133565215232623
oct16700036355011
93551446747047
101022210202121
11364576012539
12146140165b21
1375517837684
14376920a3c13
151b8cb566dd1
hexee0079da09

1022210202121 has 8 divisors (see below), whose sum is σ = 1033722488160. Its totient is φ = 1010698511328.

The previous prime is 1022210202089. The next prime is 1022210202127. The reversal of 1022210202121 is 1212020122201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1022210202121 - 25 = 1022210202089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022210202095 and 1022210202104.

It is not an unprimeable number, because it can be changed into a prime (1022210202127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3931270 + ... + 4183216.

It is an arithmetic number, because the mean of its divisors is an integer number (129215311020).

Almost surely, 21022210202121 is an apocalyptic number.

It is an amenable number.

1022210202121 is a deficient number, since it is larger than the sum of its proper divisors (11512286039).

1022210202121 is an equidigital number, since it uses as much as digits as its factorization.

1022210202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297623.

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

Adding to 1022210202121 its reverse (1212020122201), we get a palindrome (2234230324322).

The spelling of 1022210202121 in words is "one trillion, twenty-two billion, two hundred ten million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 89 45587 251947 4057243 22423283 11485507889 1022210202121