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1202121300121 = 7721923788837
BaseRepresentation
bin10001011111100100000…
…000110101100010011001
311020220212220022022200121
4101133210000311202121
5124143421023100441
62320125155233241
7152564454312340
oct21374400654231
94226786268617
101202121300121
114238a9153295
12174b8bba8821
1389489c22991
144227c15ab57
152140b05ddd1
hex117e4035899

1202121300121 has 8 divisors (see below), whose sum is σ = 1374043282880. Its totient is φ = 1030246909488.

The previous prime is 1202121300091. The next prime is 1202121300137. The reversal of 1202121300121 is 1210031212021.

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 1202121300121 - 25 = 1202121300089 is a prime.

It is a super-2 number, since 2×12021213001212 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202121300095 and 1202121300104.

It is not an unprimeable number, because it can be changed into a prime (1202121300421) 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, 11843886 + ... + 11944951.

It is an arithmetic number, because the mean of its divisors is an integer number (171755410360).

Almost surely, 21202121300121 is an apocalyptic number.

It is an amenable number.

1202121300121 is a deficient number, since it is larger than the sum of its proper divisors (171921982759).

1202121300121 is an equidigital number, since it uses as much as digits as its factorization.

1202121300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23796063.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1202121300121 its reverse (1210031212021), we get a palindrome (2412152512142).

The spelling of 1202121300121 in words is "one trillion, two hundred two billion, one hundred twenty-one million, three hundred thousand, one hundred twenty-one".

Divisors: 1 7 7219 50533 23788837 166521859 171731614303 1202121300121