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101220202002221 = 2711319283173829
BaseRepresentation
bin10111000000111100101010…
…001011110011011100101101
3111021101120000220122200110122
4113000330222023303130231
5101231342433203032341
6555135530250214325
730214626652056041
oct2700745213633455
9437346026580418
10101220202002221
112a285279252575
12b4291a0a243a5
134463040c14003
141add1263a6021
15ba7e82d2894b
hex5c0f2a2f372d

101220202002221 has 8 divisors (see below), whose sum is σ = 101670731923200. Its totient is φ = 100770238432080.

The previous prime is 101220202002217. The next prime is 101220202002253. The reversal of 101220202002221 is 122200202022101.

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 101220202002221 - 22 = 101220202002217 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 101220202002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220202022221) 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, 141229466 + ... + 141944363.

It is an arithmetic number, because the mean of its divisors is an integer number (12708841490400).

Almost surely, 2101220202002221 is an apocalyptic number.

It is an amenable number.

101220202002221 is a deficient number, since it is larger than the sum of its proper divisors (450529920979).

101220202002221 is a wasteful number, since it uses less digits than its factorization.

101220202002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283175419.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101220202002221 its reverse (122200202022101), we get a palindrome (223420404024322).

The spelling of 101220202002221 in words is "one hundred one trillion, two hundred twenty billion, two hundred two million, two thousand, two hundred twenty-one".

Divisors: 1 271 1319 357449 283173829 76740107659 373506280451 101220202002221