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1022202002221 = 13957112879109
BaseRepresentation
bin11101101111111111111…
…11001011101100101101
310121201111000101222220121
432313333333023230231
5113221432203032341
62101332040244541
7133565055441331
oct16677777135455
93551430358817
101022202002221
11364571421864
12146139470751
1375515c2626a
1437690d6b7c1
151b8ca9974d1
hexedfffcbb2d

1022202002221 has 8 divisors (see below), whose sum is σ = 1031359128800. Its totient is φ = 1013070635280.

The previous prime is 1022202002209. The next prime is 1022202002233. The reversal of 1022202002221 is 1222002022201.

It is an interprime number because it is at equal distance from previous prime (1022202002209) and next prime (1022202002233).

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 1022202002221 - 213 = 1022201994029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022202002195 and 1022202002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022202002251) 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, 6360186 + ... + 6518923.

It is an arithmetic number, because the mean of its divisors is an integer number (128919891100).

Almost surely, 21022202002221 is an apocalyptic number.

It is an amenable number.

1022202002221 is a deficient number, since it is larger than the sum of its proper divisors (9157126579).

1022202002221 is a wasteful number, since it uses less digits than its factorization.

1022202002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12879819.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1022202002221 its reverse (1222002022201), we get a palindrome (2244204024422).

The spelling of 1022202002221 in words is "one trillion, twenty-two billion, two hundred two million, two thousand, two hundred twenty-one".

Divisors: 1 139 571 79369 12879109 1790196151 7353971239 1022202002221